Abundant Numbers
1,338th
Abundant Numbers (Long)
326th
Arithmetic Numbers
302nd
Catalan Numbers
701st
Collatz
103rd
Divisors
3,918th1,625th
Evil Numbers
1,569th
201st
Evil Numbers (Long)
1,470th
Fibonacci
2,535th
Fizz Buzz
1,566th2,122nd
Foo Fizz Buzz Bar
814th
Happy Numbers
1,433rd
Happy Numbers (Long)
703rd
Leap Years
1,216th
Leyland Numbers
792nd
Niven Numbers
2,202nd
Niven Numbers (Long)
944th
Odious Numbers
2,249th1,005th1,484th
Odious Numbers (Long)
1,327th
Pascal’s Triangle
1,285th1,492nd
Pernicious Numbers
1,663rd
Prime Numbers
2,318th
Prime Numbers (Long)
1,207th
Recamán
545th
Smith Numbers
529th
Sudoku
222nd
Van Eck Sequence
675th