Cody

Problems

51 – 91 of 91
Problem Title
Likes
Solvers
Difficulty

Problem 52619. Find the nth nude number

Created by: ChrisR

Tags digits, sequence, divisibility

3

9

Problem 47793. Find the smallest prime with n inside

Created by: ChrisR

Tags primes, strings, sequence

3

15

Problem 52283. Find numbers in the Popular Computing Z-sequence

Created by: ChrisR

Tags sequence

1

8

Problem 45344. lucky

Created by: Asif Newaz

Tags numbers, sequence, lucky

2

12

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

Created by: ChrisR

Tags counting, sequence

1

6

Problem 49808. Identify eban numbers

Created by: ChrisR

Tags strings, sequence

0

8

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

Created by: ChrisR

Tags primes, sequence

1

9

Problem 54755. List odd twin composites

Created by: ChrisR

Tags primes, number theory, sequence

1

3

Problem 55275. List the semiprimes

Created by: ChrisR

Tags primes, number theory, sequence

0

6

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

Created by: ChrisR

Tags strings, sequence, greedy

1

4

Problem 51715. Iterate the sum of divisors and totient

Created by: ChrisR

Tags number theory, sequence, divisors

2

7

Problem 47390. Find Logic 29

Created by: Dev Gupta

Tags logic, cody, logical

1

56

Problem 48040. Find the Pattern 5

Created by: Doddy Kastanya

Tags logic, sequence, pattern

0

53

Problem 45343. How lucky r u ?

Created by: Asif Newaz

Tags number, sequence, lucky

2

12

Problem 52881. List the cuban primes

Created by: ChrisR

Tags primes, project euler, sequence

1

7

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

Created by: goc3

Tags series, triangle, projecteuler

1

73

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

Created by: ChrisR

Tags combinatorics, geometry, sequence

0

4

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

Created by: ChrisR

Tags tiles, sequence

1

5

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

Created by: ChrisR

Tags sequence, factorial, divisibility

1

9

Problem 52669. Count the primes in Collatz sequences

Created by: ChrisR

Tags primes, sequence, another collatz problem

1

9

Problem 54680. Determine whether a number is practical

Created by: ChrisR

Tags factors, number theory, sequence

2

5

Problem 47518. Play Outside In with primes

Created by: ChrisR

Tags primes, puzzle, sequence

0

6

Problem 51241. Compute home primes in a given base

Created by: ChrisR

Tags primes, sequence, base conversion

0

6

Problem 52183. List the nth prime quartet prefix

Created by: ChrisR

Tags primes, convolution, sequence

0

5

Problem 45423. Bernoulli's Triangle

Created by: Asif Newaz

Tags easy, sequence

1

14

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

Created by: Ramon Villamangca

Tags easy, sequence, date and time

2

14

Problem 48075. Play PRIMEGAME

Created by: ChrisR

Tags primes, sequence, conway

2

8

Problem 47073. Find the nth Fibbinary number

Created by: ChrisR

Tags binary, fibonacci, sequence

2

10

Problem 47895. List the dihedral primes

Created by: ChrisR

Tags primes, sequence, symmetry

2

9

Problem 2190. Order of things - 2

Created by: J-G van der Toorn

Tags matrix, sequence, algorithm

2

10

Problem 45473. Sub-sequence - 01

Created by: Asif Newaz

Tags sequence

0

6

Problem 53990. Classify product/digit-sum sequences

Created by: ChrisR

Tags number theory, sequence, noeis

2

6

Problem 54355. Compute a determinant

Created by: ChrisR

Tags large numbers, sequence, determinant

0

4

Problem 54620. List the Euclid numbers

Created by: ChrisR

Tags primes, sequence, infinitude

0

5

Problem 54645. Determine whether the input is an anagram number

Created by: ChrisR

Tags sequence, anagram, wordplay

0

4

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

Problem 54780. Trap a knight

Created by: ChrisR

Tags spiral, chess, sequence

1

2

Problem 55345. Easy Sequences 68: Factorial Rectangles

Created by: Ramon Villamangca

Tags easy, geometry, sequence

1

3

Problem 51077. List composite numbers that cannot be written as the sum of two primes

Created by: ChrisR

Tags primes, number theory, sequence

2

7

Problem 45272. Pseudo-vampire number

Created by: Asif Newaz

Tags numbers, number theory, sequence

2

19
51 – 91 of 91