12 Days of Christmas
425th
99 Bottles of Beer
111th
Abundant Numbers
166th
Abundant Numbers (Long)
197th
Arithmetic Numbers
232nd
Ascending Primes
249th
Christmas Trees
590th
Collatz
133rd
Divisors
1st
Emirp Numbers
678th
Fibonacci
193rd
Fizz Buzz
63rd
Foo Fizz Buzz Bar
1st
Happy Numbers
307th
Happy Numbers (Long)
187th
Kolakoski Sequence
234th
Leap Years
974th
Look and Say
312th
Niven Numbers
630th
Niven Numbers (Long)
318th
Number Spiral
197th
Prime Numbers
603rd
Prime Numbers (Long)
359th
Quine
80th
Van Eck Sequence
115th