Abundant Numbers
1,875th
12th
Diamonds
1,010th
Divisors
1,635th19th
Emirp Numbers
508th
Evil Numbers
2,213th1st
Evil Numbers (Long)
1st
Fibonacci
3,662nd
8,111th
3,918th1st
Fizz Buzz
132nd16th
Foo Fizz Buzz Bar
5th
Fractions
920th159th
Happy Numbers
1,216th1st
Happy Numbers (Long)
969th1st
ISBN
50th
Kolakoski Sequence
1,151st1st
Leap Years
1,246th
728th9th
Look and Say
472nd48th
Niven Numbers
1st
Niven Numbers (Long)
1st
Odious Numbers
3,207th1st
Odious Numbers (Long)
1st
Ordinal Numbers
907th
Pangram Grep
25th
Pascal’s Triangle
1st
Pernicious Numbers
23rd
Pernicious Numbers (Long)
249th
Prime Numbers
1st
Prime Numbers (Long)
893rd
1st
Reverse Polish Notation
743rd
Smith Numbers
751st
Spelling Numbers
270th
Transpose Sentence
68th
Van Eck Sequence
788th7th