12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arithmetic Numbers
Christmas Trees
Collatz
Diamonds
Divisors
2,929th
360th
1,762nd
696th
Emirp Numbers
Emirp Numbers (Long)
Evil Numbers
Evil Numbers (Long)
Fibonacci
1,743rd
624th
Fizz Buzz
9,405th
612th
Foo Fizz Buzz Bar
Gijswijt’s Sequence
Inventory Sequence
485th
106th
Kolakoski Sequence
Leap Years
Look and Say
Lucky Numbers
Niven Numbers
1,686th
427th
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
Prime Numbers
2,910th
658th
Prime Numbers (Long)
Recamán
Van Eck Sequence