12 Days of Christmas
44th
163rd
99 Bottles of Beer
39th
235th
Abundant Numbers
83rd
206th
Abundant Numbers (Long)
52nd
111th
Arabic to Roman
60th
Arithmetic Numbers
42nd
83rd
Arrows
29th
Ascending Primes
21st
ASCII Table
64th
Calendar
3rd
Card Number Validation
14th
Catalan Numbers
37th
Catalan’s Constant
20th
20th61st
Collatz
49th
89th
Day of Week
1st
Divisors
92nd
198th
Emirp Numbers
15th
Evil Numbers
36th
251st
Evil Numbers (Long)
56th
Factorial Factorisation
20th
65th
Fibonacci
129th
301st
Fizz Buzz
582nd157th139th43rd27th150th45th867th183rd189th1,891st228th
Foo Fizz Buzz Bar
47th
27th52nd
Fractions
15th
Game of Life
24th
Happy Numbers
19th
Happy Numbers (Long)
38th
Hilbert Curve
13th
ISBN
46th
Kaprekar Numbers
18th
Leap Years
111th
Leyland Numbers
41st
ln 2
20th
64th
Look and Say
42nd
Lucky Numbers
23rd
Mandelbrot
15th
Medal Tally
20th
Morse Encoder
23rd
Niven Numbers
62nd
Niven Numbers (Long)
8th
Number Spiral
15th
Odious Numbers
36th
238th
Odious Numbers (Long)
47th
Ordinal Numbers
10th
185th
Pangram Grep
26th
Partition Numbers
19th
Pascal’s Triangle
62nd
Pernicious Numbers
42nd
Pernicious Numbers (Long)
31st
Prime Numbers
13th
314th
Prime Numbers (Long)
47th
Recamán
46th
Rijndael S-box
23rd
Rock-paper-scissors-Spock-lizard
18th
Roman to Arabic
31st
ROT13
20th
Seven Segment
27th
Tic-tac-toe
13th
Tongue-twisters
25th
Transpose Sentence
15th
United States
27th
Van Eck Sequence
40th
γ
15th
46th
λ
20th
100th
π
41st
215th
τ
28th
113th
φ
27th
95th
√2
34th
107th
𝑒
35th
113th