12 Days of Christmas
140
99 Bottles of Beer
789
Abundant Numbers
789
Abundant Numbers (Long)
843
Arabic to Roman
291
Arithmetic Numbers
875
Arrows
642
Ascending Primes
204
ASCII Table
451
Card Number Validation
804
Collatz
921
CSS Colors
113
Day of Week
907
Divisors
517886
Emirp Numbers
499
Evil Numbers
908
Evil Numbers (Long)
908
Factorial Factorisation
656
Farey Sequence
794
Fibonacci
871959
Fizz Buzz
720971
Foo Fizz Buzz Bar
872
Forsyth–Edwards Notation
320
Happy Numbers
819
Leap Years
825
Leyland Numbers
762
ln 2
901
Look and Say
809
Niven Numbers
935
Niven Numbers (Long)
845
Odious Numbers
923
Odious Numbers (Long)
905
Ordinal Numbers
667
Pascal’s Triangle
527
Pernicious Numbers
541
Prime Numbers
704
Prime Numbers (Long)
714
Recamán
809
Set
531
Spelling Numbers
448
United States
77
π
467
τ
427