12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arithmetic Numbers
Christmas Trees
Collatz
Diamonds
Divisors
2,786th
134th
1,506th
622nd
Emirp Numbers
Emirp Numbers (Long)
Evil Numbers
Evil Numbers (Long)
Fibonacci
1,720th
617th
Fizz Buzz
9,247th
501st
Foo Fizz Buzz Bar
Gijswijt’s Sequence
Inventory Sequence
467th
100th
Kolakoski Sequence
Leap Years
Look and Say
Lucky Numbers
Niven Numbers
1,686th
319th
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
Prime Numbers
2,797th
555th
Prime Numbers (Long)
Recamán
Van Eck Sequence