12 Days of Christmas
81st
41st
24 Game
7th
99 Bottles of Beer
47th
13th
Abundant Numbers
34th
10th
24th
Abundant Numbers (Long)
17th
7th
21st
Arabic to Roman
41st
Arithmetic Numbers
11th
Arrows
17th
Ascending Primes
12th
7th
ASCII Table
11th
8th
6th
Billiards
2nd
brainfuck
16th
Card Number Validation
16th
8th
Catalan Numbers
7th
23rd
177th
Catalan’s Constant
20th
Christmas Trees
11th
12th
Collatz
19th31st
7th
23rd
Cubes
330th
Day of Week
21st
17th
Diamonds
43rd
19th
Divisors
34th15th
6th
21st
Emirp Numbers
13th
Emirp Numbers (Long)
11th
Evil Numbers
5th14th7th
26th
Evil Numbers (Long)
1st14th1st
24th
Factorial Factorisation
12th
7th
14th
Farey Sequence
27th
21st
74th
Fibonacci
46th43rd56th28th39th50th3rd1st1st18th40th34th45th34th39th42nd66th31st18th1st12th33rd116th138th25th111th6th1st
219th174th20th13th257th20th32nd43rd40th
Fizz Buzz
138th
52nd
56th
25th
8th
Foo Fizz Buzz Bar
59th
25th
26th
8th
Fractions
15th
Game of Life
28th
19th
Happy Numbers
25th
12th
Happy Numbers (Long)
13th
ISBN
32nd
Kaprekar Numbers
14th
10th
Kolakoski Constant
9th
7th
Kolakoski Sequence
35th
20th
Leap Years
39th
16th
Leyland Numbers
15th
ln 2
5th
4th
28th
9th
9th
56th
4th
Look and Say
25th
17th
Lucky Numbers
14th
Mandelbrot
4th
Niven Numbers
27th
17th
4th
Niven Numbers (Long)
34th
20th
2nd
Number Spiral
18th
5th
Odious Numbers
7th14th4th
21st
Odious Numbers (Long)
5th9th2nd
21st
Ordinal Numbers
16th
Partition Numbers
3rd
Pascal’s Triangle
12th
4th
14th
Pernicious Numbers
50th
31st
25th
Pernicious Numbers (Long)
13th
Prime Numbers
13th
9th
20th
47th
339th
Prime Numbers (Long)
19th
2nd
23rd
Quine
134th30th
22nd
30th
18th
10th
67th
9th
Recamán
51st
27th
Reverse Polish Notation
1st
ROT13
25th
15th
Seven Segment
17th
7th
Sierpiński Triangle
31st
16th
Smith Numbers
11th
Star Wars Opening Crawl
140th
Transpose Sentence
1st
Vampire Numbers
5th
Van Eck Sequence
33rd
22nd
γ
24th
12th
λ
23rd
12th
15th
26th
π
11th
4th
9th
16th
7th
37th
τ
10th
4th
9th
10th
5th
26th
φ
10th
8th
30th
10th
116th
4th
√2
9th
6th
32nd
14th
16th
146th
4th
𝑒
53rd13th
9th
30th
15th
11th
99th
4th