12 Days of Christmas
30th
99 Bottles of Beer
55th
Abundant Numbers
61st34th
Arabic to Roman
15th
brainfuck
19th
Christmas Trees
96th
CSS Colors
28th15th
Cubes
27th
Diamonds
33rd
Divisors
31st
Emirp Numbers
45th
Emojify
Evil Numbers
99th
Fibonacci
136th
Fizz Buzz
1st
Happy Numbers
48th
Leap Years
7th16th46th6th21st
Leyland Numbers
31st
Look and Say
45th
Lucky Tickets
37th
Morse Decoder
Morse Encoder
14th
Niven Numbers
67th34th
1st39th
Odious Numbers
96th
Ordinal Numbers
Pangram Grep
68th
Pascal’s Triangle
75th
Pernicious Numbers
58th
Poker
Prime Numbers
114th
Quine
34th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
60th
Rule 110
53rd
Seven Segment
19th
Sierpiński Triangle
36th16th
Spelling Numbers
54th
Ten-pin Bowling
Tongue-twisters
47th
United States
λ
73rd
π
69th
τ
57th
φ
48th
√2
53rd
𝑒
63rd