12 Days of Christmas
821
24 Game
402
99 Bottles of Beer
718
Abundant Numbers
803810
784
Catalan Numbers
690
Christmas Trees
685
Collatz
797
CSS Colors
217
Cubes
566
Diamonds
561
Divisors
749
984933
Emirp Numbers
452452
622
Emojify
417
Evil Numbers
725
801
Factorial Factorisation
434
Farey Sequence
420
Fibonacci
674
719
934
Fizz Buzz
847896
977
Gijswijt’s Sequence
332
Happy Numbers
714
Kolakoski Sequence
412
771658
Leap Years
831879
Leyland Numbers
958
ln 2
778
Look and Say
782
Lucky Numbers
573
Morse Decoder
373
Morse Encoder
380
N Queens
544
Niven Numbers
611
921
Niven Numbers (Long)
740
Odious Numbers
712
783
Ordinal Numbers
805
Pangram Grep
910
Pascal’s Triangle
907538
Pernicious Numbers
711
Pernicious Numbers (Long)
743
Prime Numbers
768647
912
Quine
946
Recamán
554
816
Reverse Polish Notation
769
Seven Segment
494
585
Sierpiński Triangle
588
550
Tongue-twisters
590
Vampire Numbers
98
828
Van Eck Sequence
711
π
89