12 Days of Christmas
821
24 Game
390
99 Bottles of Beer
718
Abundant Numbers
803810
785
Catalan Numbers
691
Christmas Trees
685
Collatz
798
CSS Colors
216
Cubes
567
Diamonds
562
Divisors
749
984934
Emirp Numbers
452453
622
Emojify
417
Evil Numbers
726
801
Factorial Factorisation
435
Farey Sequence
421
Fibonacci
675
719
935
Fizz Buzz
847896
977
Gijswijt’s Sequence
333
Happy Numbers
714
Kolakoski Sequence
412
772660
Leap Years
831879
Leyland Numbers
959
ln 2
778
Look and Say
782
Lucky Numbers
573
Morse Decoder
374
Morse Encoder
380
N Queens
545
Niven Numbers
612
921
Niven Numbers (Long)
740
Odious Numbers
713
784
Ordinal Numbers
805
Pangram Grep
910
Pascal’s Triangle
908539
Pernicious Numbers
711
Pernicious Numbers (Long)
744
Prime Numbers
768647
913
Quine
946
Recamán
555
817
Reverse Polish Notation
770
Seven Segment
496
586
Sierpiński Triangle
588
541
Tongue-twisters
590
Vampire Numbers
98
829
Van Eck Sequence
711
π
89