12 Days of Christmas
814
Abundant Numbers
691
Arithmetic Numbers
590
917
Arrows
758
Ascending Primes
871
Christmas Trees
903
Collatz
879
CSS Colors
829
DFA Simulator
717
Diamonds
881
Divisors
632
979
Evil Numbers
422
980
Factorial Factorisation
454
Fibonacci
905650758932
Fizz Buzz
889
807973
Foo Fizz Buzz Bar
895
Fractions
876
Intersection
799
Leap Years
681
645863
Levenshtein Distance
754
Leyland Numbers
824
Look and Say
916
Medal Tally
821
Morse Decoder
604
Musical Chords
768
556
Niven Numbers
819
Niven Numbers (Long)
775
895
Odious Numbers
429
977
Ordinal Numbers
570
893
Pernicious Numbers
493
Poker
915
705
Prime Numbers
621
Quine
986
945
Recamán
736
Repeating Decimals
535
Reverse Polish Notation
693
Rock-paper-scissors-Spock-lizard
879
Sierpiński Triangle
669
Spelling Numbers
Ten-pin Bowling
840
Tongue-twisters
929
United States
894
841
Vampire Numbers
884
φ
740
√2
770