12 Days of Christmas
454
Abundant Numbers
573
Diamonds
453
Divisors
780
Fibonacci
869
Gijswijt’s Sequence
30
Hexdump
624
Kolakoski Sequence
529
Leap Years
873
N Queens
641
Niven Numbers
845417
Odious Numbers
737
Partition Numbers
632
Pernicious Numbers
657
Prime Numbers
621
Quine
353
Recamán
783
Rijndael S-box
369
Tongue-twisters
440276
Tower of Hanoi
849