Count the ways a row measuring fifty units in length could be filled with blocks three units long.
Find how many Pythagorean triangles allow tiling with a perimeter < 100,000,000.
The prime factorisation of binomial coefficients
Powers With Trailing Digits
Right triangles with integer coordinates
Finding Nim positions consisting of heap sizes n, 2n and 3n for n ≤ 230 that result in a losing game.
Magic Squares While working on an idea for maximizing a return on a financial portfolio using magic squares, we though we would share our Python code in case someone else may have some use for it. import string def make_magic_square(n): if n < 1 or n == 2: return False if n % 2 == […]
Solve SuDoku puzzles
An unexpected way of using two cubes to make a square.
Make plurals of English words from the given input