12 Days of Christmas
545th
99 Bottles of Beer
379th
Abundant Numbers
837th
Abundant Numbers (Long)
407th
Ascending Primes
146th
Emirp Numbers
692nd
Emirp Numbers (Long)
259th
Evil Numbers
677th
Evil Numbers (Long)
352nd
Fractions
475th
Happy Numbers
588th
Happy Numbers (Long)
308th
Leap Years
975th
Niven Numbers
703rd
Niven Numbers (Long)
354th
Number Spiral
226th
Odious Numbers
471st
Odious Numbers (Long)
284th
Ordinal Numbers
311th
Rijndael S-box
126th
Sierpiński Triangle
275th