12 Days of Christmas
894
Abundant Numbers
720
Arithmetic Numbers
613
Arrows
781
Ascending Primes
880
Christmas Trees
941
Collatz
CSS Colors
824
DFA Simulator
855
Diamonds
918
Divisors
664
Evil Numbers
577
Factorial Factorisation
470
Fibonacci
927657764934
Fizz Buzz
907
Foo Fizz Buzz Bar
921
Fractions
879
Intersection
Leap Years
696
Levenshtein Distance
767
Leyland Numbers
875
Look and Say
969
Medal Tally
875
Morse Decoder
636
Musical Chords
869
Niven Numbers
875
Niven Numbers (Long)
827
Odious Numbers
546
Ordinal Numbers
595
Pernicious Numbers
764
Poker
922
Prime Numbers
Quine
1,000
Recamán
786
Repeating Decimals
Reverse Polish Notation
693
Rock-paper-scissors-Spock-lizard
917
Sierpiński Triangle
709
Spelling Numbers
Ten-pin Bowling
909
Tongue-twisters
929
United States
921
Vampire Numbers
φ
766
√2
815