12 Days of Christmas
402
Abundant Numbers
555
636
Abundant Numbers (Long)
599
690
Arabic to Roman
344
Arithmetic Numbers
625
685
Billiards
570
Christmas Trees
594
Collatz
671
784
Continued Fractions
451
526
Cubes
338
Diamonds
478
Divisors
646
706
Evil Numbers
599
Evil Numbers (Long)
501
600
Fibonacci
707911850553785846
Fizz Buzz
531
612
Fractions
678
Happy Numbers
416
Inventory Sequence
521
Leap Years
753717
799
783757
Niven Numbers
574
667
Niven Numbers (Long)
558
642
Number Spiral
405
Odious Numbers
527
607
Odious Numbers (Long)
623
Pascal’s Triangle
537
Pernicious Numbers
368
Prime Numbers
533
610
Prime Numbers (Long)
603
Quine
426
Roman to Arabic
258
ROT13
346
Seven Segment
323
Sierpiński Triangle
286
Smith Numbers
411
484
Tongue-twisters
355
373
Tower of Hanoi
487
549
Trinomial Triangle
291
378