12 Days of Christmas
151st
99 Bottles of Beer
280th
Abundant Numbers
147th
Christmas Trees
305th
Collatz
98th
Divisors
391st
Emirp Numbers
320th
Evil Numbers
439th
Fibonacci
731st127th
Fizz Buzz
1,358th
Happy Numbers
245th
Morse Decoder
111th
Niven Numbers
179th
Odious Numbers
253rd
Pangram Grep
Pascal’s Triangle
361st
Pernicious Numbers
193rd
Prime Numbers
431st
Quine
1st56th
Recamán
46th
Roman to Arabic
148th
Seven Segment
103rd
Sierpiński Triangle
103rd
Spelling Numbers
85th
United States