12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Diamonds
Divisors
Emirp Numbers
Evil Numbers
Fibonacci
Fizz Buzz
43rd25th19th30th381st49th14th68th86th50th53rd9th4th161st734th34th47th97th8th360th109th49th143rd70th325th160th62nd
Look and Say
Prime Numbers
Quine
1st1st25th90th
Tongue-twisters
π
τ