12 Days of Christmas
85th
42nd
24 Game
7th
99 Bottles of Beer
50th
15th
Abundant Numbers
35th
11th
25th
Abundant Numbers (Long)
18th
7th
22nd
Arabic to Roman
44th
Arithmetic Numbers
11th
Arrows
18th
Ascending Primes
13th
7th
ASCII Table
12th
9th
6th
Billiards
2nd
brainfuck
18th
Card Number Validation
18th
11th
Catalan Numbers
7th
23rd
192nd
Catalan’s Constant
21st
Christmas Trees
13th
13th
Collatz
20th31st
7th
24th
Cubes
335th
Day of Week
22nd
18th
Diamonds
45th
21st
Divisors
35th15th
5th
22nd
Emirp Numbers
13th
Emirp Numbers (Long)
11th
Evil Numbers
5th14th7th
28th
Evil Numbers (Long)
2nd14th1st
26th
Factorial Factorisation
12th
9th
16th
Farey Sequence
28th
21st
81st
Fibonacci
46th46th59th32nd42nd55th3rd1st1st19th43rd36th52nd38th42nd48th70th33rd19th1st12th36th138th144th27th118th6th1st
226th187th21st15th271st21st34th46th45th
Fizz Buzz
141st
55th
58th
26th
8th
Foo Fizz Buzz Bar
62nd
27th
26th
8th
Fractions
15th
Game of Life
27th
18th
Happy Numbers
26th
12th
Happy Numbers (Long)
14th
ISBN
32nd
Kaprekar Numbers
15th
10th
Kolakoski Constant
9th
7th
Kolakoski Sequence
36th
21st
Leap Years
47th
17th
Leyland Numbers
15th
ln 2
5th
30th
10th
9th
69th
4th
Look and Say
28th
18th
Lucky Numbers
21st
15th
Mandelbrot
5th
Niven Numbers
27th
17th
4th
Niven Numbers (Long)
36th
21st
2nd
Number Spiral
19th
5th
Odious Numbers
7th14th4th
22nd
Odious Numbers (Long)
5th9th2nd
22nd
Ordinal Numbers
16th
Partition Numbers
3rd
Pascal’s Triangle
12th
4th
16th
Pernicious Numbers
54th
35th
27th
Pernicious Numbers (Long)
13th
Prime Numbers
13th
10th
20th
49th
357th
Prime Numbers (Long)
20th
3rd
26th
Quine
136th23rd
23rd
33rd
1st
11th
72nd
9th
Recamán
56th
29th
Reverse Polish Notation
1st
ROT13
29th
15th
Seven Segment
18th
7th
Sierpiński Triangle
31st
17th
Smith Numbers
12th
Star Wars Opening Crawl
146th
Transpose Sentence
1st
Vampire Numbers
5th
Van Eck Sequence
35th
24th
γ
24th
13th
λ
23rd
12th
17th
27th
π
11th
4th
10th
16th
7th
38th
τ
11th
4th
10th
11th
5th
27th
φ
10th
9th
33rd
11th
126th
4th
√2
9th
7th
36th
14th
18th
158th
4th
𝑒
54th13th
9th
34th
15th
11th
114th
4th