Abundant Numbers
678
681
684
Arabic to Roman
459
631
Christmas Trees
663
Collatz
725
Cubes
647
Diamonds
763
609
Divisors
788
693
962
Emojify
318
Evil Numbers
769
Fibonacci
770
660
716544
932
Fizz Buzz
199377926623419463863732531926635
Happy Numbers
495
Leap Years
686
508
660
Look and Say
505
Morse Encoder
416
Niven Numbers
637
740
Odious Numbers
781
Ordinal Numbers
754
Pascal’s Triangle
739
Pernicious Numbers
393
Prime Numbers
531
740
Quine
945
Rule 110
501
Seven Segment
687
Sierpiński Triangle
429
Tongue-twisters
641
π
85
𝑒
62