12 Days of Christmas
40th
99 Bottles of Beer
39th
Abundant Numbers
48th
Christmas Trees
46th
Collatz
33rd
Divisors
66th
Emirp Numbers
35th
Emojify
26th
Evil Numbers
48th
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
49th
Niven Numbers (Long)
25th
Odious Numbers
40th
Ordinal Numbers
29th
Pangram Grep
41st
Pernicious Numbers
40th
Prime Numbers
61st
RecamΓ‘n
23rd
Seven Segment
17th
Spelling Numbers
11th
Time Distance
8th
Tongue-twisters
45th
United States
25th