12 Days of Christmas
8th
99 Bottles of Beer
139th177th2nd
Abundant Numbers
18th30th233rd14th
Abundant Numbers (Long)
178th3rd
Arithmetic Numbers
5th
Ascending Primes
7th
ASCII Table
5th
brainfuck
3rd
Card Number Validation
23rd
Catalan Numbers
40th
Christmas Trees
7th
Collatz
12th
Day of Week
1st
Diamonds
11th
Divisors
28th88th126th5th
Emirp Numbers
5th
Emirp Numbers (Long)
5th
Emojify
11th
Evil Numbers
29th68th271st12th
Evil Numbers (Long)
47th16th
Factorial Factorisation
7th
Farey Sequence
1st
Fibonacci
212th10th
Foo Fizz Buzz Bar
5th
Forsyth–Edwards Notation
5th
Fractions
109th1st
Happy Numbers
9th
14th
Happy Numbers (Long)
4th
Hexdump
10th
Inventory Sequence
15th
ISBN
9th
Jacobi Symbol
8th
Kolakoski Constant
8th
Kolakoski Sequence
20th
Leap Years
20th75th65th4th
Leyland Numbers
45th
4th
ln 2
1st
Look and Say
12th
Lucky Numbers
12th
Medal Tally
18th
Musical Chords
17th
Niven Numbers
1st161st32nd
Niven Numbers (Long)
1st
Number Spiral
6th
Odious Numbers
67th166th12th
Odious Numbers (Long)
99th12th
Ordinal Numbers
68th
2nd
PalindromemordnilaP
Pangram Grep
5th
Pascal’s Triangle
89th
3rd
Pernicious Numbers
63rd87th45th
Pernicious Numbers (Long)
9th
Prime Numbers
86th
12th
Prime Numbers (Long)
1st
Quine
1st
Recamán
8th
Reverse Polish Notation
8th
ROT13
118th1st
Rule 110
26th
Scrambled Sort
31st
Seven Segment
28th
Sierpiński Triangle
56th
19th
Smith Numbers
6th
Spelling Numbers
3rd34th71st6th
Tongue-twisters
8th
Transpose Sentence
5th
United States
63rd
11th
Van Eck Sequence
18th
1st
π
10th
τ
12th
φ
25th
√2
16th
𝑒
10th