12 Days of Christmas
6th
223rd
24 Game
4th
99 Bottles of Beer
142nd
6th
532nd
9th11th
Abundant Numbers
309th
13th
174th
12th
Abundant Numbers (Long)
159th
9th
124th
Arabic to Roman
8th
Arithmetic Numbers
87th
17th
17th
72nd
Ascending Primes
9th5th
ASCII Table
387th
6th
brainfuck
101st
364th
Card Number Validation
143rd
Catalan Numbers
25th
227th
9th5th
Catalan’s Constant
15th
7th
21st
11th
8th
6th
7th
6th
4th9th
Christmas Trees
17th
10th
29th
2nd
827th
32nd8th
Collatz
22nd19th
37th
29th
25th59th
244th
23rd
7th
11th
CSS Colors
10th
Cubes
15th
Day of Week
161st
Diamonds
11th
46th
6th
92nd
9th
Divisors
28th
450th54th
4th
120th
12th
13th
Emirp Numbers
20th
33rd
13th39th
638th
6th
Emirp Numbers (Long)
329th
Emojify
6th
73rd
Evil Numbers
27th
45th
29th
617th
15th
11th
Evil Numbers (Long)
21st
17th
376th
Factorial Factorisation
16th
Farey Sequence
19th
20th
220th
Fibonacci
512th
57th
7th
125th
32nd
1st
124th
81st
67th46th
Fizz Buzz
87th
751st
45th
1st151st
9th
367th
213th
43rd367th
49th21st64th46th
Foo Fizz Buzz Bar
871st
Gijswijt’s Sequence
11th
Happy Numbers
9th
7th
Happy Numbers (Long)
381st
Inventory Sequence
240th
Kolakoski Constant
8th
42nd
12th
15th
14th17th
149th
13th
7th
9th4th
Kolakoski Sequence
39th
9th
Leap Years
10th
383rd
16th
Leyland Numbers
25th
9th
9th7th
ln 2
31st
Look and Say
25th
14th
11th
9th
Lucky Numbers
252nd
Medal Tally
75th
Morse Decoder
14th
161st
Morse Encoder
13th
Niven Numbers
14th
25th
47th
67th
15th
Niven Numbers (Long)
11th
476th
Number Spiral
197th
Odious Numbers
1st
28th
309th
10th
Odious Numbers (Long)
1st
15th
227th
Pangram Grep
3rd
Pascal’s Triangle
36th
35th
9th
Pernicious Numbers
1st
644th
10th
Pernicious Numbers (Long)
1st
282nd
6th
Polyominoes
89th
Prime Numbers
1st
328th
24th
508th
122nd
23rd11th
Prime Numbers (Long)
1st
265th
68th
Quine
137th
1st
75th
Recamán
9th
9th
Reverse Polish Notation
248th
Rijndael S-box
20th
ROT13
155th
Seven Segment
6th
Sierpiński Triangle
11th15th13th17th
73rd40th41st15th12th10th
19th21st19th11th18th11th
28th12th32nd16th15th36th118th22nd15th27th18th17th11th23rd28th28th9th334th14th33rd50th34th8th
12th16th10th
11th7th15th
Smith Numbers
9th
Sudoku
129th
Tongue-twisters
19th
245th
8th
Tower of Hanoi
4th
Trinomial Triangle
13th
United States
12th
345th
Vampire Numbers
4th
Van Eck Sequence
48th
16th
10th
γ
17th
5th
λ
12th
70th50th
9th
27th12th
27th
15th
16th
21st
12th
12th21st
154th
16th35th18th
12th8th
10th6th
π
131st
197th77th
43rd
405th
6th
τ
9th
6th
φ
15th41st
37th15th
74th
39th22nd
357th
5th
√2
39th
6th
𝑒
29th14th22nd9th84th71st
15th
50th32nd16th34th13th26th
16th
37th
9th53rd113th75th
38th12th21st10th41st26th46th13th406th94th15th67th25th
27th8th12th11th6th11th7th12th