12 Days of Christmas
51st
Abundant Numbers
42nd
Abundant Numbers (Long)
27th
Catalan’s Constant
12th
Collatz
52nd
153rd
Divisors
42nd
Evil Numbers
75th
Evil Numbers (Long)
55th
Fibonacci
5th
1st
61st
Fizz Buzz
283rd
Happy Numbers
43rd
170th
Happy Numbers (Long)
25th
Niven Numbers
51st
Odious Numbers
70th
Odious Numbers (Long)
53rd
Ordinal Numbers
39th
Pangram Grep
30th
Pascal’s Triangle
22nd
490th
Prime Numbers
100th
Prime Numbers (Long)
59th
Quine
26th
55th
Recamán
15th
189th