Abundant Numbers
1,870th
12th
Diamonds
974th
Divisors
1,601st18th
Emirp Numbers
486th
Evil Numbers
2,155th1st
Evil Numbers (Long)
1st
Fibonacci
3,623rd
7,824th
3,869th1st
Fizz Buzz
126th14th
Foo Fizz Buzz Bar
4th
Fractions
888th151st
Happy Numbers
1,165th1st
Happy Numbers (Long)
916th1st
ISBN
50th
Kolakoski Sequence
1,101st1st
Leap Years
1,263rd
721st8th
Look and Say
457th53rd
Niven Numbers
1st
Niven Numbers (Long)
1st
Odious Numbers
3,063rd1st
Odious Numbers (Long)
1st
Ordinal Numbers
889th
Pangram Grep
24th
Pascal’s Triangle
1st
Pernicious Numbers
21st
Pernicious Numbers (Long)
214th
Prime Numbers
1st
Prime Numbers (Long)
843rd
1st
Reverse Polish Notation
718th
Smith Numbers
699th
Spelling Numbers
266th
Transpose Sentence
60th
Van Eck Sequence
749th7th