12 Days of Christmas
19th
99 Bottles of Beer
105th78th5th
Abundant Numbers
18th29th172nd3rd
Abundant Numbers (Long)
147th3rd
Arithmetic Numbers
4th
Ascending Primes
7th
ASCII Table
7th
brainfuck
4th
Card Number Validation
22nd
Catalan Numbers
37th
Christmas Trees
4th
Collatz
11th
Day of Week
1st
Diamonds
13th
Divisors
28th88th1st1st
Emirp Numbers
25th
Emirp Numbers (Long)
10th
Emojify
12th
Evil Numbers
29th65th264th4th
Evil Numbers (Long)
44th16th
Factorial Factorisation
1st
Farey Sequence
1st
Fibonacci
200th10th
Foo Fizz Buzz Bar
6th
Forsyth–Edwards Notation
1st
Fractions
71st1st
Happy Numbers
14th
21st
Happy Numbers (Long)
1st
Hexdump
15th
Inventory Sequence
15th
ISBN
16th
Jacobi Symbol
16th
Kolakoski Constant
11th
Kolakoski Sequence
20th
Leap Years
19th68th63rd18th
Leyland Numbers
42nd
3rd
ln 2
1st
Look and Say
10th
Lucky Numbers
12th
Medal Tally
17th
Musical Chords
12th
Niven Numbers
1st160th32nd
Niven Numbers (Long)
1st
Number Spiral
13th
Odious Numbers
64th160th5th
Odious Numbers (Long)
94th12th
Ordinal Numbers
64th
1st
PalindromemordnilaP
Pangram Grep
5th
Pascal’s Triangle
84th
1st
Pernicious Numbers
59th83rd43rd
Pernicious Numbers (Long)
8th
Prime Numbers
83rd
1st
Prime Numbers (Long)
1st
Quine
1st
Recamán
8th
Reverse Polish Notation
13th
ROT13
99th1st
Rule 110
25th
Scrambled Sort
27th
Seven Segment
27th
Sierpiński Triangle
56th
18th
Smith Numbers
11th
Spelling Numbers
2nd4th29th2nd
Tongue-twisters
23rd
Transpose Sentence
11th
United States
58th
19th
Van Eck Sequence
17th
1st
π
10th
τ
13th
φ
24th
√2
15th
𝑒
10th