12 Days of Christmas
7th
99 Bottles of Beer
8th
Abundant Numbers
27th
Abundant Numbers (Long)
17th
Alphabetic Numbers
3rd
Arabic to Roman
20th
Arithmetic Numbers
52nd
Arrows
10th
Ascending Primes
7th
ASCII Table
8th
brainfuck
22nd
Calendar
4th
Catalan Numbers
29th
Christmas Trees
24th
Collatz
26th
CSS Colors
1st
Cubes
9th
Day of Week
46th1st15th
Diamonds
18th
Divisors
157th💎9th
Emirp Numbers
18th
Emirp Numbers (Long)
7th
Emojify
10th
Evil Numbers
2nd35th
Evil Numbers (Long)
1st
Fibonacci
26th
Fizz Buzz
3rd1st33rd
Foo Fizz Buzz Bar
20th2nd17th
Fractions
12th
Gray Code Decoder
8th
Gray Code Encoder
7th
Happy Numbers
66th18th
Happy Numbers (Long)
21st
Hexdump
12th
Intersection
13th
ISBN
9th
Leap Years
1st17th
Leyland Numbers
17th3rd
Look and Say
19th
Lucky Numbers
10th
Medal Tally
9th
Morse Decoder
11th
Morse Encoder
11th
Niven Numbers
36th
Niven Numbers (Long)
14th
Number Spiral
5th
Odious Numbers
2nd29th
Odious Numbers (Long)
1st
Ordinal Numbers
48th17th1st
Pangram Grep
9th
Pascal’s Triangle
16th
Pernicious Numbers
28th
Pernicious Numbers (Long)
9th
Prime Numbers
16th36th
Prime Numbers (Long)
23rd5th
Quine
24th
Recamán
20th
Reverse Polish Notation
11th
Rock-paper-scissors-Spock-lizard
10th
Roman to Arabic
30th
ROT13
12th
Rule 110
12th
Scrambled Sort
7th
Seven Segment
19th
Sierpiński Triangle
13th
Smith Numbers
10th
Spelling Numbers
6th
Star Wars Opening Crawl
7th
Taxicab Numbers
5th
Tongue-twisters
19th
United States
28th14th
Vampire Numbers
7th
Van Eck Sequence
18th
π
17th
τ
14th
φ
12th
√2
11th
𝑒
13th