Abundant Numbers
684
688
688
Arabic to Roman
470
630
Christmas Trees
682
Collatz
730
759
Cubes
664
Diamonds
801
614
Divisors
794
715
967
Emojify
323
Evil Numbers
769
Fibonacci
771
719
549
662
934
Fizz Buzz
209
382
931
632
661
868
744
425
536
929
638
Happy Numbers
497
Leap Years
688
561
662
Look and Say
516
Morse Encoder
424
Niven Numbers
647
746
Odious Numbers
783
Ordinal Numbers
765
Pascal’s Triangle
741
Pernicious Numbers
395
Prime Numbers
532
740
Quine
946
Rule 110
506
Seven Segment
703
Sierpiński Triangle
448
Tongue-twisters
647
π
85
𝑒
62