12 Days of Christmas
625
99 Bottles of Beer
667
Abundant Numbers
817
Arabic to Roman
430
Cubes
583
Divisors
931
Emirp Numbers (Long)
633
Emojify
351
Evil Numbers
749
Evil Numbers (Long)
601
Fractions
569
Intersection
745
Lucky Numbers
458
Lucky Tickets
636
Number Spiral
773
Pascal’s Triangle
782
Poker
478
Prime Numbers
748
Prime Numbers (Long)
659
Quine
941
Sierpiński Triangle
656
Spelling Numbers
588
Sudoku
375
Vampire Numbers
256
Van Eck Sequence
729
π
511
√2
686