12 Days of Christmas
78th
99 Bottles of Beer
307th
Abundant Numbers
114th
Christmas Trees
356th
Collatz
45th
Divisors
416th
Emirp Numbers
362nd
Evil Numbers
526th
Fibonacci
864th157th
Fizz Buzz
1,479th
Happy Numbers
262nd
Morse Decoder
124th
Niven Numbers
227th
Odious Numbers
328th
Pangram Grep
Pascal’s Triangle
422nd
Pernicious Numbers
248th
Prime Numbers
476th
Quine
1st86th
Recamán
107th
Roman to Arabic
168th
Seven Segment
111th
Sierpiński Triangle
116th
Spelling Numbers
76th
United States