Abundant Numbers
576
670
Abundant Numbers (Long)
630
707
Arabic to Roman
367
Arithmetic Numbers
658
731
Billiards
621
Christmas Trees
637
Collatz
696
824
Cubes
368
Diamonds
513
Divisors
667
726
Evil Numbers
636
Evil Numbers (Long)
642
Fibonacci
726944885840818
Fizz Buzz
541
638
Fractions
667
Happy Numbers
446
Inventory Sequence
565
Leap Years
818740
843850768
Niven Numbers
598
708
Niven Numbers (Long)
600
686
Number Spiral
444
Odious Numbers
562
648
Odious Numbers (Long)
670
Pascal’s Triangle
581
Pernicious Numbers
394
Prime Numbers
648
Prime Numbers (Long)
636
Quine
454
Roman to Arabic
282
ROT13
365
Seven Segment
349
Sierpiński Triangle
299
Smith Numbers
438
542
Tongue-twisters
366
389
Trinomial Triangle
320
473