12 Days of Christmas
90th
45th
24 Game
8th
99 Bottles of Beer
50th
17th
Abundant Numbers
35th
12th
25th
Abundant Numbers (Long)
18th
7th
22nd
Arabic to Roman
44th
Arithmetic Numbers
11th
Arrows
18th
Ascending Primes
13th
8th
ASCII Table
12th
6th
6th
Billiards
4th
2nd
brainfuck
18th
Card Number Validation
20th
11th
Catalan Numbers
7th
24th
201st
Catalan’s Constant
36th
Christmas Trees
13th
15th
Collatz
20th9th
5th
26th
Continued Fractions
8th
Cubes
342nd
Day of Week
22nd
18th
Diamonds
46th
22nd
12th
Divisors
36th15th
5th
24th
Emirp Numbers
15th
Emirp Numbers (Long)
12th
Evil Numbers
12th
8th10th7th
30th
Evil Numbers (Long)
7th
2nd9th1st
27th
Factorial Factorisation
12th
9th
18th
Farey Sequence
29th
22nd
82nd
Fibonacci
53rd6th46th59th32nd45th56th14th1st1st19th47th40th52nd40th42nd51st64th35th22nd1st12th38th1st146th28th121st7th1st
72nd193rd22nd17th277th158th22nd35th47th46th
Fizz Buzz
6th
48th128th
43rd
59th
26th
8th
Foo Fizz Buzz Bar
65th
27th
26th
8th
Fractions
28th
15th
Game of Life
28th
18th
Happy Numbers
18th
9th
Happy Numbers (Long)
15th
ISBN
32nd
Kaprekar Numbers
18th
10th
Kolakoski Constant
9th
7th
Kolakoski Sequence
36th
22nd
Leap Years
42nd
3rd
18th
Leyland Numbers
14th
16th
ln 2
6th
5th
32nd
10th
9th
89th
2nd
Look and Say
7th
💎
Lucky Numbers
21st
15th
Mandelbrot
4th
Niven Numbers
1st
1st
1st
Niven Numbers (Long)
24th
15th
1st
Number Spiral
20th
5th
Odious Numbers
11th
9th10th3rd
23rd
Odious Numbers (Long)
8th
9th9th2nd
23rd
Ordinal Numbers
16th
Partition Numbers
5th
2nd
Pascal’s Triangle
12th
4th
16th
Pernicious Numbers
43rd
29th
28th
Pernicious Numbers (Long)
14th
Prime Numbers
10th
16th
6th
21st
50th
59th
Prime Numbers (Long)
5th
21st
2nd
26th
Quine
141st26th
23rd
36th
1st
11th
81st
9th
Recamán
58th
29th
Reverse Polish Notation
1st
ROT13
31st
16th
Seven Segment
18th
6th
Sierpiński Triangle
32nd
17th
Smith Numbers
12th
Star Wars Opening Crawl
150th
Tower of Hanoi
4th
24th
5th
1st
1st
26th
Transpose Sentence
1st
Vampire Numbers
5th
Van Eck Sequence
36th
25th
γ
21st
8th
λ
13th
4th
34th
55th
π
4th
11th
4th
23rd
17th
7th
71st
τ
3rd
11th
4th
22nd
11th
5th
56th
φ
10th
9th
36th
11th
179th
3rd
√2
9th
7th
38th
15th
18th
197th
3rd
𝑒
55th13th
9th
37th
7th
13th
12th
127th
5th