12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Card Number Validation
Catalan’s Constant
Christmas Trees
Collatz
Cubes
Divisors
Factorial Factorisation
Fibonacci
4,748th6,113th2,069th
Fizz Buzz
7,503rd9,096th707th
Foo Fizz Buzz Bar
2,056th2,232nd14th
Fractions
Leap Years
2,519th2,777th2,489th
N Queens
Pascal’s Triangle
Polyominoes
Prime Numbers
Prime Numbers (Long)
Recamán
Tongue-twisters
π