12 Days of Christmas
29th
99 Bottles of Beer
53rd
Abundant Numbers
56th31st
Arabic to Roman
15th
brainfuck
19th
Christmas Trees
90th
CSS Colors
24th12th
Cubes
23rd
Diamonds
28th
Divisors
30th
Emirp Numbers
43rd
Emojify
Evil Numbers
90th
Fibonacci
119th
Fizz Buzz
1st
Happy Numbers
44th
Leap Years
7th13th12th1st18th
Leyland Numbers
29th
Look and Say
40th
Lucky Tickets
29th
Morse Decoder
Morse Encoder
14th
Niven Numbers
60th31st
1st35th
Odious Numbers
86th
Ordinal Numbers
Pangram Grep
62nd
Pascal’s Triangle
69th
Pernicious Numbers
54th
Poker
Prime Numbers
101st
Quine
30th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
56th
Rule 110
50th
Seven Segment
16th
Sierpiński Triangle
36th14th
Spelling Numbers
45th
Ten-pin Bowling
Tongue-twisters
38th
United States
λ
65th
π
59th
τ
52nd
φ
43rd
√2
47th
𝑒
52nd