12 Days of Christmas
19th
99 Bottles of Beer
106th79th5th
Abundant Numbers
18th29th173rd3rd
Abundant Numbers (Long)
146th3rd
Arithmetic Numbers
4th
Ascending Primes
8th
ASCII Table
7th
brainfuck
4th
Card Number Validation
23rd
Catalan Numbers
39th
Christmas Trees
4th
Collatz
11th
Day of Week
1st
Diamonds
15th
Divisors
28th88th1st1st
Emirp Numbers
26th
Emirp Numbers (Long)
10th
Emojify
12th
Evil Numbers
29th66th266th4th
Evil Numbers (Long)
44th16th
Factorial Factorisation
1st
Farey Sequence
1st
Fibonacci
204th10th
Foo Fizz Buzz Bar
6th
Forsyth–Edwards Notation
1st
Fractions
72nd1st
Happy Numbers
14th
22nd
Happy Numbers (Long)
1st
Hexdump
15th
Inventory Sequence
15th
ISBN
16th
Jacobi Symbol
17th
Kolakoski Constant
11th
Kolakoski Sequence
20th
Leap Years
19th73rd63rd18th
Leyland Numbers
41st
3rd
ln 2
1st
Look and Say
10th
Lucky Numbers
12th
Medal Tally
18th
Musical Chords
13th
Niven Numbers
1st161st32nd
Niven Numbers (Long)
1st
Number Spiral
15th
Odious Numbers
65th161st5th
Odious Numbers (Long)
95th12th
Ordinal Numbers
68th
1st
PalindromemordnilaP
Pangram Grep
5th
Pascal’s Triangle
84th
1st
Pernicious Numbers
58th83rd43rd
Pernicious Numbers (Long)
9th
Prime Numbers
85th
1st
Prime Numbers (Long)
1st
Quine
1st
Recamán
8th
Reverse Polish Notation
14th
ROT13
102nd1st
Rule 110
28th
Scrambled Sort
28th
Seven Segment
29th
Sierpiński Triangle
56th
19th
Smith Numbers
11th
Spelling Numbers
2nd4th29th2nd
Tongue-twisters
25th
Transpose Sentence
11th
United States
59th
20th
Van Eck Sequence
17th
1st
π
10th
τ
13th
φ
25th
√2
16th
𝑒
10th