12 Days of Christmas
808
Abundant Numbers
749
Arabic to Roman
601
Christmas Trees
709
Cubes
504
Diamonds
631
Divisors
984
Emirp Numbers
600
Evil Numbers
816
981
Fibonacci
833
960
Fizz Buzz
976
Happy Numbers
714
Leap Years
815
Morse Decoder
574
Morse Encoder
622
Niven Numbers
902
962
Odious Numbers
821
979
Ordinal Numbers
906
Pangram Grep
753
Pascal’s Triangle
939
Pernicious Numbers
601
Prime Numbers
871
Quine
946
Rock-paper-scissors-Spock-lizard
678
Roman to Arabic
443
Rule 110
378
Seven Segment
712
Sierpiński Triangle
740
Spelling Numbers
367
United States
467
φ
697
√2
707