12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arithmetic Numbers
Christmas Trees
Collatz
Diamonds
Divisors
2,822nd135th1,531st628th
Emirp Numbers
Emirp Numbers (Long)
Evil Numbers
Evil Numbers (Long)
Fibonacci
1,776th626th
Fizz Buzz
9,333rd504th
Foo Fizz Buzz Bar
Gijswijt’s Sequence
Inventory Sequence
472nd100th
Kolakoski Sequence
Leap Years
Look and Say
Lucky Numbers
Niven Numbers
1,699th321st
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
Prime Numbers
2,823rd560th
Prime Numbers (Long)
Recamán
Van Eck Sequence