12 Days of Christmas
389
99 Bottles of Beer
465
Abundant Numbers
706
Abundant Numbers (Long)
773
Arabic to Roman
530
Arithmetic Numbers
Arrows
399
ASCII Table
457
Christmas Trees
622
Collatz
717
Cubes
353
Divisors
649
Emirp Numbers
498
Emirp Numbers (Long)
549
Evil Numbers
834
Evil Numbers (Long)
814
Factorial Factorisation
494
Fibonacci
909
Fizz Buzz
890
Foo Fizz Buzz Bar
648
Forsyth–Edwards Notation
498
Fractions
538
Happy Numbers
539
Happy Numbers (Long)
670
ISBN
567
Leap Years
862
Leyland Numbers
759
ln 2
76
Look and Say
481
Lucky Numbers
472
Odious Numbers
781
Odious Numbers (Long)
779
Prime Numbers
622
Prime Numbers (Long)
658
Roman to Arabic
464
Ten-pin Bowling
323
Time Distance
444