Abundant Numbers
638
685
659
Arabic to Roman
394
449
Christmas Trees
674
Collatz
716
751
Cubes
462
Diamonds
790
512
Divisors
794
697
916
Emojify
367
Evil Numbers
769
Fibonacci
754
719
549
662
934
Fizz Buzz
379
928
630
659
865
725
422
533
848
636
Happy Numbers
386
Leap Years
687
544
661
Look and Say
501
Morse Encoder
288
Niven Numbers
643
744
Odious Numbers
783
Ordinal Numbers
624
Pascal’s Triangle
687
Pernicious Numbers
395
Prime Numbers
518
740
Quine
946
Rule 110
435
Seven Segment
513
Sierpiński Triangle
416
Tongue-twisters
368
π
187
𝑒
154