12 Days of Christmas
661
838
99 Bottles of Beer
724739
CSS Colors
253
Cubes
375
Diamonds
435
Divisors
849
Evil Numbers
556
Fizz Buzz
868779904
Leap Years
761
Look and Say
516
Medal Tally
612
Rock-paper-scissors-Spock-lizard
Spelling Numbers
612
Tongue-twisters
748
United States
220
Zodiac Signs