12 Days of Christmas
99 Bottles of Beer
13th
Abundant Numbers
Arabic to Roman
Arrows
brainfuck
Christmas Trees
CSS Colors
Cubes
Diamonds
Divisors
Emirp Numbers
Emojify
Evil Numbers
Fibonacci
15th
47th
48th
85th
36th
29th
25th
56th
82nd
60th
Fizz Buzz
64th
Happy Numbers
Intersection
Kolakoski Constant
Kolakoski Sequence
Leap Years
10th
Levenshtein Distance
Leyland Numbers
Look and Say
Lucky Tickets
Morse Decoder
Morse Encoder
Niven Numbers
11th
Odious Numbers
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
5th
Poker
Prime Numbers
10th
Quine
1st
1st
2nd
89th
1st
16th
22nd
3rd
1st
28th
10th
25th
48th
28th
1st
1st
1st
50th
1st
5th
42nd
55th
12th
1st
1st
31st
8th
16th
Recamán
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
Sierpiński Triangle
Spelling Numbers
Ten-pin Bowling
Tongue-twisters
United States
Vampire Numbers
λ
π
τ
φ
√2
𝑒