Cody

Problems

51 – 100 of 108
Problem Title
Likes
Solvers
Difficulty

Problem 48045. Find the Pattern 6

Created by: Doddy Kastanya

Tags logic, sequence, pattern

0

117

Problem 52956. Compute the largest number whose prime factors sum to n

Created by: ChrisR

Tags primes, sequence, integer complexity

1

6

Problem 45335. Take it out

Created by: Asif Newaz

Tags sequence

1

12

Problem 3001. Sphenic number sequence

Created by: goc3

Tags prime, number, factor

2

53

Problem 50811. Compute the nth term from the Sieve of Flavius Josephus

Created by: ChrisR

Tags sequence, sieve

1

10

Problem 56593. List the nth term of Rozhenko’s inventory sequence

Created by: ChrisR

Tags sequence, inventory, numberphile

1

4

Problem 47793. Find the smallest prime with n inside

Created by: ChrisR

Tags primes, strings, sequence

3

15

Problem 55275. List the semiprimes

Created by: ChrisR

Tags primes, number theory, sequence

0

7

Problem 51246. Characterize the final state of another digit inventory sequence

Created by: ChrisR

Tags counting, sequence

2

8

Problem 45344. lucky

Created by: Asif Newaz

Tags numbers, sequence, lucky

2

12

Problem 3003. Mobius function

Created by: goc3

Tags prime, number, factor

4

41

Problem 51813. Sum the elements in rows of the Levine triangle

Created by: ChrisR

Tags sequence, astronomical growth

1

7

Problem 51950. Find the smallest integer m such that n divides m!

Created by: ChrisR

Tags sequence, factorial, divisibility

2

11

Problem 52881. List the cuban primes

Created by: ChrisR

Tags primes, project euler, sequence

1

8

Problem 1901. GJam 2014 China Rd A: Read Phone Number

Created by: Richard Zapor

Tags string, sequence, gjam

1

12

Problem 42832. Segmented number sequence

Created by: HH

Tags numbers, sequence

3

15

Problem 45473. Sub-sequence - 01

Created by: Asif Newaz

Tags sequence

1

7

Problem 46571. Characterize the final state of the digit inventory sequence

Created by: ChrisR

Tags counting, sequence

1

7

Problem 46594. Create a sequence of primes p such that p > n π(p)

Created by: ChrisR

Tags primes, sequence

1

9

Problem 49808. Identify eban numbers

Created by: ChrisR

Tags strings, sequence

2

12

Problem 47390. Find Logic 29

Created by: Dev Gupta

Tags logic, cody, logical

2

80

Problem 54345. Fill a rectangle with 1x1 and 2x2 tiles

Created by: ChrisR

Tags tiles, sequence

2

11

Problem 52629. Count the ways to draw non-intersecting chords between points on a circle

Created by: ChrisR

Tags combinatorics, geometry, sequence

1

7

Problem 45343. How lucky r u ?

Created by: Asif Newaz

Tags number, sequence, lucky

2

12

Problem 52669. Count the primes in Collatz sequences

Created by: ChrisR

Tags primes, sequence, another collatz problem

1

11

Problem 48040. Find the Pattern 5

Created by: Doddy Kastanya

Tags logic, sequence, pattern

0

62

Problem 44732. Highly divisible triangular number (inspired by Project Euler 12)

Created by: goc3

Tags series, triangle, projecteuler

1

80

Problem 49572. Compute the largest number possible with the Brussels choice

Created by: ChrisR

Tags strings, sequence, greedy

2

8

Problem 51715. Iterate the sum of divisors and totient

Created by: ChrisR

Tags number theory, sequence, divisors

3

10

Problem 54680. Determine whether a number is practical

Created by: ChrisR

Tags factors, number theory, sequence

2

5

Problem 51241. Compute home primes in a given base

Created by: ChrisR

Tags primes, sequence, base conversion

0

6

Problem 47518. Play Outside In with primes

Created by: ChrisR

Tags primes, puzzle, sequence

1

7

Problem 57288. Sum the unitary divisors of a number

Created by: ChrisR

Tags number theory, sequence

1

7

Problem 45423. Bernoulli's Triangle

Created by: Asif Newaz

Tags easy, sequence

2

15

Problem 47895. List the dihedral primes

Created by: ChrisR

Tags primes, sequence, symmetry

2

9

Problem 47073. Find the nth Fibbinary number

Created by: ChrisR

Tags binary, fibonacci, sequence

2

10

Problem 48075. Play PRIMEGAME

Created by: ChrisR

Tags primes, sequence, conway

2

10

Problem 52522. Easy Sequences 4: Eliminate the Days of Confusion

Created by: Ramon Villamangca

Tags easy, sequence, date and time

3

18

Problem 57477. Solve an equation involving primes and fractions

Created by: ChrisR

Tags primes, number theory, sequence

2

3

Problem 57492. Compute the Tetris sequence

Created by: ChrisR

Tags binary, sequence, facial recognition

1

4

Problem 57512. Easy Sequences 89: Double Summation of a Trigonometric Product

Created by: Ramon Villamangca

Tags easy, trigonometry, simple

1

1

Problem 57535. Find patterns in subprime Fibonacci sequences

Created by: ChrisR

Tags sequence, conway, pattern

0

2

Problem 2190. Order of things - 2

Created by: J-G van der Toorn

Tags matrix, sequence, algorithm

2

10

Problem 45474. Sub-sequence - 02

Created by: Asif Newaz

Tags sequence

1

5

Problem 45475. Sub-sequence - 03

Created by: Asif Newaz

Tags sequence

2

5

Problem 53990. Classify product/digit-sum sequences

Created by: ChrisR

Tags number theory, sequence, noeis

4

8

Problem 54355. Compute a determinant

Created by: ChrisR

Tags large numbers, sequence, determinant

0

4

Problem 54645. Determine whether the input is an anagram number

Created by: ChrisR

Tags sequence, anagram, wordplay

0

5

Problem 54660. Generate the Figure-Figure sequence

Created by: ChrisR

Tags sequence, figure/ground, hofstadter

2

5

Problem 54775. Flip the parity of digits in a decimal expansion

Created by: ChrisR

Tags sequence, interesting plot

1

4
51 – 100 of 108