12 Days of Christmas
43rd
99 Bottles of Beer
53rd
Abundant Numbers
242nd
34th
Arabic to Roman
26th
Arrows
14th
ASCII Table
20th
Catalan Numbers
6th
Catalan’s Constant
3rd
Christmas Trees
49th
Collatz
37th
CSS Colors
15th
Day of Week
21st
Divisors
105th
Emirp Numbers
188th
28th
Emirp Numbers (Long)
55th
9th
Emojify
9th
Evil Numbers
292nd
77th
Evil Numbers (Long)
104th
26th
Fibonacci
677th
148th
1,397thFizz Buzz
174th
Foo Fizz Buzz Bar
26th
191st
33rd
520thFractions
105th
11th
Happy Numbers
45th
Happy Numbers (Long)
15th
Hexdump
10th
ISBN
16th
Kolakoski Constant
5th
Kolakoski Sequence
17th
Leap Years
84th
Levenshtein Distance
33rd
Leyland Numbers
15th
Look and Say
25th
Lucky Numbers
9th
Morse Decoder
8th
Morse Encoder
14th
Musical Chords
6th
Niven Numbers
38th
Niven Numbers (Long)
17th
Odious Numbers
202nd
44th
Odious Numbers (Long)
76th
21st
Ordinal Numbers
21st
Pangram Grep
15th
Pascal’s Triangle
33rd
Pernicious Numbers
43rd
Poker
5th
Prime Numbers
347th
89th
Prime Numbers (Long)
35th
Recamán
16th
Roman to Arabic
87th
10th
Seven Segment
28th
Sierpiński Triangle
18th
Smith Numbers
11th
Spelling Numbers
10th
Time Distance
5th
Tongue-twisters
13th
United States
14th
Van Eck Sequence
16th
λ
5th
π
9th
τ
10th
φ
12th
√2
8th
𝑒
11th