12 Days of Christmas
381st
99 Bottles of Beer
93rd
Abundant Numbers
147th
Abundant Numbers (Long)
168th
Arithmetic Numbers
185th
Ascending Primes
198th
Christmas Trees
539th
Collatz
107th
Divisors
1st
Emirp Numbers
644th
Fibonacci
165th
Fizz Buzz
54th
Foo Fizz Buzz Bar
1st
Happy Numbers
284th
Happy Numbers (Long)
167th
Kolakoski Sequence
213th
Leap Years
926th
Look and Say
280th
Niven Numbers
584th
Niven Numbers (Long)
286th
Number Spiral
174th
Prime Numbers
558th
Prime Numbers (Long)
322nd
Quine
63rd
Van Eck Sequence
88th