12 Days of Christmas
61st
Abundant Numbers
44th
Abundant Numbers (Long)
35th
Catalan’s Constant
13th
Collatz
67th201st
Divisors
52nd
Evil Numbers
90th
Evil Numbers (Long)
70th
Fibonacci
12th1st
Fizz Buzz
318th
Happy Numbers
47th201st
Happy Numbers (Long)
26th
Niven Numbers
64th
Odious Numbers
89th
Odious Numbers (Long)
71st
Ordinal Numbers
43rd
Pangram Grep
29th
Pascal’s Triangle
25th557th
Prime Numbers
111th
Prime Numbers (Long)
73rd
Quine
23rd72nd
Recamán
19th224th
Repeating Decimals
128th