Abundant Numbers
1,394th
Abundant Numbers (Long)
370th
Arithmetic Numbers
354th
Catalan Numbers
815th
Collatz
117th
Divisors
4,054th1,746th
Evil Numbers
1,685th
232nd
Evil Numbers (Long)
1,670th
Fibonacci
2,696th
Fizz Buzz
1,536th2,054th
Foo Fizz Buzz Bar
845th
Happy Numbers
1,590th
Happy Numbers (Long)
784th
Leap Years
1,278th
Leyland Numbers
868th
Niven Numbers
2,429th
Niven Numbers (Long)
1,056th
Odious Numbers
2,450th1,104th1,625th
Odious Numbers (Long)
1,521st
Pascal’s Triangle
1,400th1,624th
Pernicious Numbers
1,878th
Prime Numbers
2,448th
Prime Numbers (Long)
1,369th
Recamán
578th
Smith Numbers
612th
Sudoku
238th
Van Eck Sequence
757th