12 Days of Christmas
897
99 Bottles of Beer
678
Abundant Numbers
803
Arabic to Roman
638
Christmas Trees
693
Collatz
859
CSS Colors
263
Diamonds
466
Divisors
766
Emirp Numbers
520
Emojify
486
Evil Numbers
521
Fibonacci
589
Fizz Buzz
918
Foo Fizz Buzz Bar
767
Fractions
474
Happy Numbers
554
Leap Years
804
Look and Say
690
Lucky Numbers
465
Morse Decoder
203
Morse Encoder
226
Niven Numbers
656
Number Spiral
279
Pangram Grep
641
Pernicious Numbers
276
Prime Numbers
590
Quine
735Rock-paper-scissors-Spock-lizard
429
Spelling Numbers
499
Tongue-twisters
574
United States
118
π
191