12 Days of Christmas
378
24 Game
251
99 Bottles of Beer
411
Abundant Numbers
798801
753
Catalan Numbers
691
Christmas Trees
597
Collatz
795
CSS Colors
95
Cubes
402
Diamonds
469
Divisors
749
933934
Emirp Numbers
356399
505
Emojify
418
Evil Numbers
719
801
Factorial Factorisation
346
Farey Sequence
371
Fibonacci
675
719
935
Fizz Buzz
845893
891
Gijswijt’s Sequence
275
Happy Numbers
554
Kolakoski Sequence
405
757659
Leap Years
830878
Leyland Numbers
816
ln 2
764
Look and Say
637
Lucky Numbers
573
Morse Decoder
258
Morse Encoder
265
N Queens
411
Niven Numbers
609
919
Niven Numbers (Long)
739
Odious Numbers
713
784
Ordinal Numbers
656
Pangram Grep
772
Pascal’s Triangle
841539
Pernicious Numbers
711
Pernicious Numbers (Long)
729
Prime Numbers
768623
912
Quine
946
Recamán
554
737
Reverse Polish Notation
770
Seven Segment
469
428
Sierpiński Triangle
583
514
Tongue-twisters
328
Vampire Numbers
97
612
Van Eck Sequence
674
π
74