12 Days of Christmas
45th
99 Bottles of Beer
41st
Abundant Numbers
49th
Christmas Trees
46th
Collatz
33rd
Divisors
66th
Emirp Numbers
35th
Emojify
26th
Evil Numbers
49th
Evil Numbers (Long)
39th
Fibonacci
129th
Fizz Buzz
209th
Foo Fizz Buzz Bar
53rd
Happy Numbers
29th
Leap Years
90th
Look and Say
23rd
Niven Numbers
51st
Niven Numbers (Long)
25th
Odious Numbers
41st
Ordinal Numbers
29th
Pangram Grep
41st
Pernicious Numbers
43rd
Prime Numbers
62nd
RecamΓ‘n
23rd
Seven Segment
18th
Spelling Numbers
12th
Time Distance
8th
Tongue-twisters
45th
United States
25th