12 Days of Christmas
6th
110th
99 Bottles of Beer
8th
Abundant Numbers
13th
150th
Abundant Numbers (Long)
11th
Arithmetic Numbers
3rd
Ascending Primes
3rd
ASCII Table
6th
76th
brainfuck
9th
Card Number Validation
1st
Catalan Numbers
5th
Catalan’s Constant
9th
Christmas Trees
7th
Collatz
9th
203rd
CSS Colors
6th
Cubes
5th
Day of Week
6th
Diamonds
6th
Divisors
5th
100th
Emirp Numbers
10th
Emojify
5th
Evil Numbers
10th
807th
Farey Sequence
8th
Fibonacci
8th
Fizz Buzz
53rd
22nd
543rd
Gijswijt’s Sequence
5th
Happy Numbers
7th
Happy Numbers (Long)
7th
Hexdump
5th
106th
Inventory Sequence
9th
ISBN
3rd
37th
Jacobi Symbol
7th
Kaprekar Numbers
5th
Kolakoski Constant
8th
Kolakoski Sequence
12th
Leap Years
5th
Levenshtein Distance
4th
42nd
Leyland Numbers
7th
Look and Say
5th
Lucky Numbers
60th
Lucky Tickets
Morse Encoder
4th
121st
N Queens
2nd
Niven Numbers
9th
Odious Numbers
10th
Ordinal Numbers
11th
Pangram Grep
6th79th
Pascal’s Triangle
10th
Prime Numbers
11th
137th
Quine
1st28th
56th
Recamán
10th
58th
Rijndael S-box
3rd
Rock-paper-scissors-Spock-lizard
6th
Roman to Arabic
4th
ROT13
3rd
Seven Segment
6th
Sierpiński Triangle
7th
Smith Numbers
4th
207th
Tongue-twisters
5th
Transpose Sentence
3rd
United States
24th
Vampire Numbers
6th
Van Eck Sequence
7th
Zeckendorf Representation
3rd
λ
11th
61st
π
11th
τ
10th
φ
9th
√2
9th
𝑒
13th