12 Days of Christmas
51st
Abundant Numbers
42nd
Abundant Numbers (Long)
27th
Catalan’s Constant
11th
Collatz
52nd
151st
Divisors
41st
Evil Numbers
74th
Evil Numbers (Long)
54th
Fibonacci
5th
1st
61st
Fizz Buzz
283rd
Happy Numbers
43rd
169th
Happy Numbers (Long)
25th
Niven Numbers
51st
Odious Numbers
70th
Odious Numbers (Long)
53rd
Ordinal Numbers
39th
Pangram Grep
30th
Pascal’s Triangle
22nd
489th
Prime Numbers
100th
Prime Numbers (Long)
59th
Quine
26th
55th
Recamán
15th
189th