12 Days of Christmas
5th
24th
99 Bottles of Beer
47th
Abundant Numbers
12th
Abundant Numbers (Long)
11th
Arabic to Roman
6th
Arithmetic Numbers
1st
Arrows
46th
ASCII Table
48th
brainfuck
10th
30th
Card Number Validation
24th
Catalan Numbers
1st
Catalan’s Constant
17th
Christmas Trees
1st
Collatz
35th
CSS Colors
9th
Cubes
23rd
Day of Week
1st
Diamonds
1st
Divisors
1st
Emirp Numbers
14th
Emirp Numbers (Long)
26th
Emojify
15th
Evil Numbers
9th
8th
1st
Evil Numbers (Long)
25th1st
Fibonacci
14th
1st
Fizz Buzz
1st1st
Foo Fizz Buzz Bar
63rd
Forsyth–Edwards Notation
40th
Fractions
18th
Happy Numbers
34th
Happy Numbers (Long)
12th
Hexdump
51st
Intersection
5th
Inventory Sequence
46th
ISBN
8th
Kolakoski Constant
22nd
Kolakoski Sequence
14th
Leap Years
7th8th
Levenshtein Distance
19th
Leyland Numbers
6th
ln 2
15th
Look and Say
15th
Lucky Tickets
47th
Morse Decoder
18th
Morse Encoder
20th
Musical Chords
23rd
Niven Numbers
1st
Niven Numbers (Long)
22nd
Number Spiral
11th
Odious Numbers
6th
Odious Numbers (Long)
1st
Ordinal Numbers
1st
Pangram Grep
15th
Pascal’s Triangle
9th
Pernicious Numbers
1st
Pernicious Numbers (Long)
19th
Poker
51st
Prime Numbers
9th
1st10th
Prime Numbers (Long)
1st
Proximity Grid
Quine
1st
Repeating Decimals
25th
Reverse Polish Notation
20th
Rijndael S-box
22nd
Rock-paper-scissors-Spock-lizard
15th
Roman to Arabic
20th
Rule 110
18th
Scrambled Sort
10th
Seven Segment
33rd
Sierpiński Triangle
27th
Smith Numbers
13th
Spelling Numbers
18th
Sudoku
16th
Sudoku (Fill-in)
18th
Ten-pin Bowling
37th
Time Distance
33rd
Tongue-twisters
2nd
Transpose Sentence
18th
Trinomial Triangle
11th
United States
23rd
Vampire Numbers
Van Eck Sequence
6th
1st
Zodiac Signs
23rd
λ
84th
π
21st
τ
17th
φ
1st
√2
1st
𝑒
1st