12 Days of Christmas
53rd
99 Bottles of Beer
62nd
Abundant Numbers
273rd38th
Arabic to Roman
Arrows
17th
ASCII Table
26th
Catalan Numbers
9th
Catalan’s Constant
9th
Christmas Trees
53rd
Collatz
43rd
CSS Colors
18th
Day of Week
31st
Divisors
110th
Emirp Numbers
208th29th
Emirp Numbers (Long)
78th12th
Emojify
11th
Evil Numbers
323rd83rd
Evil Numbers (Long)
130th34th
Fibonacci
760th173rd1,618th
Fizz Buzz
267th
Foo Fizz Buzz Bar
41st239th60th675th
Fractions
138th16th
Happy Numbers
51st
Happy Numbers (Long)
20th
Hexdump
12th
ISBN
20th
Kolakoski Constant
11th
Kolakoski Sequence
19th
Leap Years
91st
Levenshtein Distance
39th
Leyland Numbers
17th
Look and Say
29th
Lucky Numbers
12th
Morse Decoder
11th
Morse Encoder
18th
Musical Chords
8th
Niven Numbers
47th
Niven Numbers (Long)
20th
Odious Numbers
222nd47th
Odious Numbers (Long)
100th26th
Ordinal Numbers
28th
Pangram Grep
21st
Pascal’s Triangle
40th
Pernicious Numbers
53rd
Poker
5th
Prime Numbers
379th102nd
Prime Numbers (Long)
42nd
Recamán
19th
Roman to Arabic
98th13th
Seven Segment
32nd
Sierpiński Triangle
22nd
Smith Numbers
12th
Spelling Numbers
14th
Time Distance
9th
Tongue-twisters
18th
United States
17th
Van Eck Sequence
18th
λ
13th
π
15th
τ
13th
φ
14th
√2
11th
𝑒
19th