12 Days of Christmas
701
Abundant Numbers
617
Diamonds
453
Divisors
780
Fibonacci
869
Gijswijt’s Sequence
37
Hexdump
624
Kolakoski Sequence
536
Leap Years
874
N Queens
641
Niven Numbers
845417
Odious Numbers
737
Partition Numbers
632
Pernicious Numbers
657
Prime Numbers
648
Quine
353
Recamán
783
Rijndael S-box
428
Tongue-twisters
615487
Tower of Hanoi
849