Abundant Numbers
684
689
688
Arabic to Roman
462
632
Christmas Trees
683
Collatz
731
Cubes
664
Diamonds
803
614
Divisors
795
716
967
Emojify
323
Evil Numbers
770
Fibonacci
772
664
719550
935
Fizz Buzz
209382931633425466868744536929639
Happy Numbers
498
Leap Years
688
561
662
Look and Say
516
Morse Encoder
424
Niven Numbers
647
747
Odious Numbers
784
Ordinal Numbers
766
Pascal’s Triangle
742
Pernicious Numbers
395
Prime Numbers
534
740
Quine
946
Rule 110
507
Seven Segment
704
Sierpiński Triangle
433
Tongue-twisters
641
π
85
𝑒
62