12 Days of Christmas
863
99 Bottles of Beer
719
Abundant Numbers
826
787
CSS Colors
431
Cubes
483
Diamonds
387
Divisors
817
919
Emirp Numbers
555
Emojify
567
Evil Numbers
481
769
Fibonacci
786
900
Fizz Buzz
762
293
966
389
Happy Numbers
590
564
Leap Years
891
Morse Decoder
436
Odious Numbers
569
656
Ordinal Numbers
904
Pangram Grep
602
Pascal’s Triangle
642
Pernicious Numbers
333
Poker
498
Prime Numbers
404
272
510
785
246
539
500
876
518
180
775
800
411
414
532
696
549
729
418
625
300
525
709
465
746
Roman to Arabic
675
Rule 110
568
Spelling Numbers
798
561
√2
419