12 Days of Christmas
19th
99 Bottles of Beer
106th82nd5th
Abundant Numbers
18th30th175th3rd
Abundant Numbers (Long)
148th3rd
Arithmetic Numbers
4th
Ascending Primes
8th
ASCII Table
7th
brainfuck
4th
Card Number Validation
23rd
Catalan Numbers
40th
Christmas Trees
4th
Collatz
12th
Day of Week
1st
Diamonds
15th
Divisors
28th88th1st1st
Emirp Numbers
27th
Emirp Numbers (Long)
10th
Emojify
12th
Evil Numbers
29th68th271st4th
Evil Numbers (Long)
47th16th
Factorial Factorisation
1st
Farey Sequence
1st
Fibonacci
212th10th
Foo Fizz Buzz Bar
6th
Forsyth–Edwards Notation
1st
Fractions
76th1st
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
20th75th65th18th
Leyland Numbers
43rd
3rd
ln 2
1st
Look and Say
11th
Lucky Numbers
13th
Medal Tally
19th
Musical Chords
16th
Niven Numbers
1st161st32nd
Niven Numbers (Long)
1st
Number Spiral
15th
Odious Numbers
67th166th5th
Odious Numbers (Long)
99th12th
Ordinal Numbers
68th
1st
PalindromemordnilaP
Pangram Grep
5th
Pascal’s Triangle
89th
1st
Pernicious Numbers
63rd87th45th
Pernicious Numbers (Long)
9th
Prime Numbers
85th
1st
Prime Numbers (Long)
1st
Quine
1st
Recamán
8th
Reverse Polish Notation
15th
ROT13
105th1st
Rule 110
28th
Scrambled Sort
29th
Seven Segment
29th
Sierpiński Triangle
56th
19th
Smith Numbers
11th
Spelling Numbers
2nd4th29th2nd
Tongue-twisters
25th
Transpose Sentence
11th
United States
62nd
21st
Van Eck Sequence
18th
1st
π
10th
τ
13th
φ
25th
√2
16th
𝑒
10th