12 Days of Christmas
99 Bottles of Beer
10th
Abundant Numbers
15th
32nd
Abundant Numbers (Long)
14th
23rd
Arabic to Roman
6th
Arithmetic Numbers
17th
Arrows
8th
Ascending Primes
7th
ASCII Table
16th
Billiards
5th
Card Number Validation
9th
Catalan Numbers
10th
24th
Catalan’s Constant
6th
Christmas Trees
14th
Collatz
23rd
29th
Cubes
4th
Day of Week
20th
Diamonds
9th
Divisors
Emirp Numbers
13th
49th
Emirp Numbers (Long)
7th
20th
Emojify
6th
Evil Numbers
19th
58th
47th
Evil Numbers (Long)
18th
51st
21st
Factorial Factorisation
13th
Farey Sequence
12th
Fibonacci
55th56th
55th
153rd
Fizz Buzz
20th35th612th489th326th65th59th62nd65th38th216th48th1,978th65th
Foo Fizz Buzz Bar
21st
21st
Fractions
18th
Happy Numbers
21st
27th
Happy Numbers (Long)
18th
17th
Intersection
10th
ISBN
17th
Jacobi Symbol
6th
Kolakoski Constant
4th
Leap Years
24th
49th
Lucky Numbers
9th
Morse Decoder
5th
Morse Encoder
4th
Niven Numbers
30th
41st
Niven Numbers (Long)
16th
24th
Number Spiral
7th
Odious Numbers
22nd
58th
50th
Odious Numbers (Long)
19th
53rd
22nd
Ordinal Numbers
13th
PalindromemordnilaP
2nd
Pangram Grep
11th
Pascal’s Triangle
12th
Pernicious Numbers
31st
63rd
Pernicious Numbers (Long)
9th
22nd
Prime Numbers
18th
49th
85th
Prime Numbers (Long)
14th
48th
36th
Quine
58th
Recamán
8th
Rijndael S-box
6th
Roman to Arabic
8th
Rule 110
5th
Seven Segment
7th
Sierpiński Triangle
8th
Spelling Numbers
6th
Ten-pin Bowling
6th
Tongue-twisters
4th
Transpose Sentence
United States
Vampire Numbers
4th
π
9th
11th
τ
10th