12 Days of Christmas
378
24 Game
256
99 Bottles of Beer
411
Abundant Numbers
798801
752
Catalan Numbers
690
Christmas Trees
596
Collatz
794
CSS Colors
95
Cubes
402
Diamonds
469
Divisors
749
933933
Emirp Numbers
356399
505
Emojify
417
Evil Numbers
718
801
Factorial Factorisation
346
Farey Sequence
370
Fibonacci
674
719
934
Fizz Buzz
845893
891
Gijswijt’s Sequence
275
Happy Numbers
554
Kolakoski Sequence
405
771658
Leap Years
830878
Leyland Numbers
816
ln 2
763
Look and Say
636
Lucky Numbers
573
Morse Decoder
258
Morse Encoder
265
N Queens
411
Niven Numbers
609
918
Niven Numbers (Long)
738
Odious Numbers
712
783
Ordinal Numbers
656
Pangram Grep
771
Pascal’s Triangle
841538
Pernicious Numbers
711
Pernicious Numbers (Long)
729
Prime Numbers
768623
912
Quine
946
Recamán
553
737
Reverse Polish Notation
769
Seven Segment
468
428
Sierpiński Triangle
583
514
Tongue-twisters
333
Vampire Numbers
97
612
Van Eck Sequence
673
π
74