12 Days of Christmas
79th
41st
24 Game
7th
99 Bottles of Beer
46th
13th
Abundant Numbers
34th
10th
24th
Abundant Numbers (Long)
17th
7th
21st
Arabic to Roman
40th
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
175th
Catalan’s Constant
20th
Christmas Trees
11th
12th
Collatz
19th31st
7th
22nd
Cubes
327th
Day of Week
21st
17th
Diamonds
43rd
19th
Divisors
33rd85th
16th
21st
Emirp Numbers
13th
Emirp Numbers (Long)
11th
Evil Numbers
5th14th7th
25th
Evil Numbers (Long)
1st14th1st
23rd
Factorial Factorisation
12th
7th
14th
Farey Sequence
27th
21st
74th
Fibonacci
46th42nd56th27th39th49th3rd1st1st18th38th34th45th33rd39th42nd66th30th18th1st12th31st111th134th25th110th6th1st
218th166th20th13th257th20th32nd43rd39th
Fizz Buzz
137th
52nd
56th
24th
8th
Foo Fizz Buzz Bar
59th
25th
26th
8th
Fractions
15th
Game of Life
28th
19th
Happy Numbers
24th
12th
Happy Numbers (Long)
13th
ISBN
32nd
Kaprekar Numbers
14th
10th
Kolakoski Constant
9th
7th
Kolakoski Sequence
35th
20th
Leap Years
40th
16th
Leyland Numbers
15th
ln 2
5th
4th
27th
9th
9th
53rd
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
20th
Odious Numbers (Long)
5th8th2nd
20th
Ordinal Numbers
15th
Partition Numbers
3rd
Pascal’s Triangle
12th
4th
13th
Pernicious Numbers
50th
30th
24th
Pernicious Numbers (Long)
13th
Prime Numbers
42nd
9th
19th
46th
336th
Prime Numbers (Long)
2nd
23rd
Quine
133rd30th
22nd
30th
18th
10th
63rd
9th
Recamán
50th
27th
Reverse Polish Notation
1st
ROT13
24th
15th
Seven Segment
17th
7th
Sierpiński Triangle
31st
16th
Smith Numbers
11th
Star Wars Opening Crawl
139th
Transpose Sentence
1st
Vampire Numbers
5th
Van Eck Sequence
32nd
22nd
γ
23rd
12th
λ
23rd
12th
15th
26th
π
11th
4th
9th
16th
7th
35th
τ
10th
4th
9th
10th
5th
26th
φ
10th
8th
30th
10th
114th
4th
√2
9th
6th
32nd
14th
16th
145th
4th
𝑒
53rd13th
9th
29th
15th
11th
97th
4th