Abundant Numbers
881st
Abundant Numbers (Long)
364th
Arithmetic Numbers
445th
Catalan Numbers
823rd
Collatz
251st
Divisors
4,158th2,033rd
Evil Numbers
1,613th
225th
Evil Numbers (Long)
1,689th
Fibonacci
2,765th
Fizz Buzz
2,216th3,400th
Foo Fizz Buzz Bar
1,354th
Happy Numbers
1,305th
Happy Numbers (Long)
933rd
Leap Years
1,325th
Leyland Numbers
951st
Niven Numbers
2,340th
Niven Numbers (Long)
1,117th
Odious Numbers
2,407th1,177th1,717th
Odious Numbers (Long)
1,545th
Pascal’s Triangle
1,496th1,678th
Pernicious Numbers
1,886th
Prime Numbers
1,925th
Prime Numbers (Long)
1,399th
Recamán
687th
Smith Numbers
722nd
Sudoku
333rd
Van Eck Sequence
773rd