12 Days of Christmas
849
Abundant Numbers
721
Arithmetic Numbers
605
794
Arrows
705
Ascending Primes
876
Christmas Trees
924
Collatz
796
CSS Colors
822
DFA Simulator
855
Diamonds
900
Divisors
664
933
Evil Numbers
552
981
Factorial Factorisation
463
Fibonacci
927657765934
Fizz Buzz
898
814891
Foo Fizz Buzz Bar
899
Fractions
879
Intersection
588
Leap Years
701
697864
Levenshtein Distance
767
Leyland Numbers
871
Look and Say
968
Medal Tally
868
Morse Decoder
619
Musical Chords
860
416
Niven Numbers
856
Niven Numbers (Long)
812
902
Odious Numbers
546
979
Ordinal Numbers
577
738
Pernicious Numbers
763
Poker
884
399
Prime Numbers
531
Quine
1,000
946
Recamán
776
Repeating Decimals
390
Reverse Polish Notation
693
Rock-paper-scissors-Spock-lizard
846
Sierpiński Triangle
698
Spelling Numbers
Ten-pin Bowling
888
Tongue-twisters
714
United States
896
945
Vampire Numbers
660
φ
745
√2
795