12 Days of Christmas
458
99 Bottles of Beer
514
Abundant Numbers
819
787
CSS Colors
415
Cubes
343
Diamonds
324
Divisors
817
871
Emirp Numbers
487
Emojify
640
Evil Numbers
481
769
Fibonacci
786
900
Fizz Buzz
762
233
966
356
Happy Numbers
486
436
Leap Years
891
Morse Decoder
419
Odious Numbers
569
656
Ordinal Numbers
904
Pangram Grep
602
Pascal’s Triangle
642
Pernicious Numbers
333
Poker
258
Prime Numbers
404
272
500
671
246
472
500
819
518
180
746
800
384
414
532
594
549
729
418
625
271
458
709
465
582
Roman to Arabic
675
Rule 110
562
Spelling Numbers
488
561
√2
419