12 Days of Christmas
11th
99 Bottles of Beer
40th
Abundant Numbers
372nd39th
Arabic to Roman
34th
Christmas Trees
218th35th
CSS Colors
87th24th
Cubes
14th
Diamonds
36th
Divisors
1st44th
Emirp Numbers
314th50th
Emojify
Evil Numbers
352nd56th
Fibonacci
189th8th
Fizz Buzz
412th59th81st
Happy Numbers
162nd47th
Intersection
27th
Kolakoski Constant
114th27th
Kolakoski Sequence
19th18th
Leap Years
174th50th
Levenshtein Distance
90th
Leyland Numbers
128th19th
Look and Say
25th
Lucky Tickets
19th
Morse Decoder
12th
Morse Encoder
17th
Niven Numbers
210th6th
Odious Numbers
262nd49th
Ordinal Numbers
189th27th
Pangram Grep
49th
Pascal’s Triangle
31st
Pernicious Numbers
279th48th
Prime Numbers
160th24th
Quine
85th
Recamán
76th31st
Rock-paper-scissors-Spock-lizard
31st
Roman to Arabic
33rd
Rule 110
26th
Seven Segment
26th
Sierpiński Triangle
74th14th
Tongue-twisters
29th
Vampire Numbers
223rd41st
λ
125th26th
π
τ
φ
274th
√2
𝑒
42nd