12 Days of Christmas
4th
26th
99 Bottles of Beer
48th
Abundant Numbers
12th
Abundant Numbers (Long)
11th
Arabic to Roman
6th
Arithmetic Numbers
1st
Arrows
47th
ASCII Table
50th
brainfuck
10th
31st
Card Number Validation
26th
Catalan Numbers
1st
Catalan’s Constant
18th
Christmas Trees
1st
Collatz
35th
CSS Colors
9th
Cubes
24th
Day of Week
1st
Diamonds
1st
Divisors
1st
Emirp Numbers
15th
Emirp Numbers (Long)
27th
Emojify
17th
Evil Numbers
9th
8th
1st
Evil Numbers (Long)
25th1st
Fibonacci
14th
1st
Fizz Buzz
1st1st
Foo Fizz Buzz Bar
67th
Forsyth–Edwards Notation
42nd
Fractions
20th
Happy Numbers
35th
Happy Numbers (Long)
12th
Hexdump
53rd
Intersection
6th
Inventory Sequence
47th
ISBN
7th
Kolakoski Constant
23rd
Kolakoski Sequence
13th
Leap Years
13th10th
Levenshtein Distance
20th
Leyland Numbers
8th
ln 2
15th
Look and Say
16th
Lucky Tickets
53rd
Morse Decoder
19th
Morse Encoder
23rd
Musical Chords
25th
Niven Numbers
1st
Niven Numbers (Long)
22nd
Number Spiral
13th
Odious Numbers
5th
Odious Numbers (Long)
1st
Ordinal Numbers
1st
Pangram Grep
16th
Pascal’s Triangle
8th
Pernicious Numbers
1st
Pernicious Numbers (Long)
25th
Poker
53rd
Prime Numbers
9th
1st10th
Prime Numbers (Long)
1st
Proximity Grid
Quine
1st
Repeating Decimals
26th
Reverse Polish Notation
22nd
Rijndael S-box
23rd
Rock-paper-scissors-Spock-lizard
17th
Roman to Arabic
21st
Rule 110
19th
Scrambled Sort
12th
Seven Segment
34th
Sierpiński Triangle
30th
Smith Numbers
15th
Spelling Numbers
19th
Sudoku
17th
Sudoku (Fill-in)
20th
Ten-pin Bowling
39th
Time Distance
34th
Tongue-twisters
3rd
Transpose Sentence
20th
Trinomial Triangle
13th
United States
25th
Vampire Numbers
Van Eck Sequence
6th
1st
Zodiac Signs
24th
λ
86th
π
23rd
τ
18th
φ
1st
√2
1st
𝑒
1st