12 Days of Christmas
404
99 Bottles of Beer
468
Abundant Numbers
721
Abundant Numbers (Long)
797
Arabic to Roman
543
Arithmetic Numbers
639
Arrows
411
ASCII Table
466
Christmas Trees
635
Collatz
760
Cubes
375
Divisors
675
Emirp Numbers
509
Emirp Numbers (Long)
578
Evil Numbers
851
Evil Numbers (Long)
837
Factorial Factorisation
511
Fibonacci
923
Fizz Buzz
898
Foo Fizz Buzz Bar
660
Forsyth–Edwards Notation
519
Fractions
554
Happy Numbers
552
Happy Numbers (Long)
693
ISBN
587
Leap Years
878
Leyland Numbers
785
ln 2
82
Look and Say
496
Lucky Numbers
491
Odious Numbers
800
Odious Numbers (Long)
804
Prime Numbers
635
Prime Numbers (Long)
677
Roman to Arabic
481
Ten-pin Bowling
337
Time Distance
456