99 Bottles of Beer
252nd
Abundant Numbers
240th
Catalan Numbers
112th
Collatz
172nd
Diamonds
168th
Divisors
672nd
Emirp Numbers
284th
Evil Numbers
112th
Fibonacci
196th280th157th
Fizz Buzz
1st
Happy Numbers
493rd
Kolakoski Sequence
18th
Leap Years
196th
Look and Say
242nd
Niven Numbers
531st
Odious Numbers
135th
Ordinal Numbers
187th
Pangram Grep
125th
Pascal’s Triangle
384th
Pernicious Numbers
197th
Prime Numbers
421st
Quine
58th
Recamán
160th
Roman to Arabic
119th