12 Days of Christmas
8th
231st
24 Game
4th
99 Bottles of Beer
143rd
8th
547th
10th11th
Abundant Numbers
313th
13th
183rd
12th
Abundant Numbers (Long)
161st
9th
131st
Arabic to Roman
8th
Arithmetic Numbers
91st
17th
17th
75th
Ascending Primes
9th6th
ASCII Table
399th
6th
brainfuck
102nd
369th
Card Number Validation
153rd
Catalan Numbers
26th
238th
9th5th
Catalan’s Constant
15th
7th
21st
11th
11th
6th
7th
6th
4th9th
Christmas Trees
18th
10th
29th
2nd
840th
33rd8th
Collatz
23rd19th
40th
29th
28th60th
257th
23rd
7th
11th
CSS Colors
12th
Cubes
16th
Day of Week
168th
Diamonds
12th
48th
6th
93rd
9th
Divisors
33rd
453rd54th
4th
124th
12th
14th
Emirp Numbers
20th
34th
13th39th
648th
6th
Emirp Numbers (Long)
339th
Emojify
7th
77th
Evil Numbers
30th
45th
31st
629th
15th
11th
Evil Numbers (Long)
24th
18th
387th
Factorial Factorisation
18th
Farey Sequence
19th
21st
228th
Fibonacci
515th
60th
7th
127th
32nd
1st
126th
83rd
68th46th
Fizz Buzz
88th
757th
46th
1st152nd
9th
370th
222nd
43rd368th
50th21st64th46th
Foo Fizz Buzz Bar
885th
Gijswijt’s Sequence
11th
Happy Numbers
9th
7th
Happy Numbers (Long)
388th
Inventory Sequence
251st
Kolakoski Constant
8th
42nd
12th
15th
15th17th
153rd
15th
7th
9th4th
Kolakoski Sequence
39th
9th
Leap Years
11th
394th
16th
Leyland Numbers
25th
9th
9th7th
ln 2
32nd
Look and Say
25th
14th
13th
9th
Lucky Numbers
265th
Medal Tally
81st
Morse Decoder
15th
169th
Morse Encoder
14th
Niven Numbers
16th
25th
47th
71st
16th
Niven Numbers (Long)
12th
488th
Number Spiral
207th
Odious Numbers
1st
30th
317th
10th
Odious Numbers (Long)
1st
16th
232nd
Pangram Grep
3rd
Pascal’s Triangle
38th
35th
9th
Pernicious Numbers
1st
655th
10th
Pernicious Numbers (Long)
1st
286th
6th
Polyominoes
93rd
Prime Numbers
1st
332nd
24th
519th
128th
23rd11th
Prime Numbers (Long)
1st
270th
71st
Quine
140th
1st
82nd
Recamán
10th
9th
Reverse Polish Notation
257th
Rijndael S-box
20th
ROT13
159th
Seven Segment
7th
Sierpiński Triangle
11th15th14th18th
74th40th42nd15th12th10th
19th21st19th11th18th11th
28th14th32nd18th15th36th119th22nd17th28th18th17th11th23rd28th28th9th345th14th33rd52nd35th8th
12th16th10th
11th8th16th
Smith Numbers
9th
Sudoku
133rd
Tongue-twisters
20th
252nd
9th
Tower of Hanoi
5th
Trinomial Triangle
14th
United States
12th
349th
Vampire Numbers
4th
Van Eck Sequence
50th
16th
10th
γ
18th
5th
λ
12th
70th51st
9th
27th12th
26th
16th
16th
21st
12th
13th21st
158th
19th35th20th
13th8th
10th6th
π
133rd
199th79th
45th
413th
6th
τ
9th
6th
φ
15th42nd
37th16th
76th
40th22nd
368th
6th
√2
40th
6th
𝑒
29th15th23rd10th87th73rd
15th
50th33rd16th34th14th27th
17th
38th
9th53rd115th77th
38th12th21st10th42nd26th49th13th417th96th16th69th27th
27th9th12th13th6th11th7th12th