# Problems

1 – 16 of 16
 Problem Title Likes Solvers Difficulty

#### Problem 52060. Identify Ruth-Aaron numbers

Created by: ChrisR

3

13

#### Problem 51820. Count unique orderings of vertices of a polygon

Created by: ChrisR

0

12

#### Problem 51274. Solve a nonlinear difference equation

Created by: ChrisR

0

13

#### Problem 53120. Compute the Sequence of the Day

Created by: ChrisR

Tags sequence

5

12

#### Problem 53880. List the vile numbers

Created by: ChrisR

2

6

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

Created by: ChrisR

0

4

#### Problem 52619. Find the nth nude number

Created by: ChrisR

3

9

#### Problem 52624. Determine whether a number is a fibodiv number

Created by: ChrisR

2

7

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

Created by: ChrisR

Tags sequence

1

8

#### Problem 53910. List the dopey numbers

Created by: ChrisR

1

5

#### Problem 51715. Iterate the sum of divisors and totient

Created by: ChrisR

2

7

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

Created by: ChrisR

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

1

8

#### Problem 53990. Classify product/digit-sum sequences

Created by: ChrisR

2

6

#### Problem 52644. List modest numbers up to n

Created by: ChrisR

3

5

1 – 16 of 16