12 Days of Christmas
81st
99 Bottles of Beer
311th
Abundant Numbers
116th
Christmas Trees
359th
Collatz
47th
Divisors
420th
Emirp Numbers
363rd
Evil Numbers
531st
Fibonacci
873rd159th
Fizz Buzz
1,492nd
Happy Numbers
265th
Morse Decoder
129th
Niven Numbers
229th
Odious Numbers
331st
Pangram Grep
Pascal’s Triangle
428th
Pernicious Numbers
253rd
Prime Numbers
479th
Quine
1st92nd
Recamán
110th
Roman to Arabic
168th
Seven Segment
114th
Sierpiński Triangle
118th
Spelling Numbers
76th
United States