12 Days of Christmas
4th
125th
24 Game
4th
99 Bottles of Beer
143rd
1st
504th
9th11th
Abundant Numbers
306th
12th
98th
12th
Abundant Numbers (Long)
156th
9th
77th
Arabic to Roman
3rd
Arithmetic Numbers
84th
17th
17th
24th
Ascending Primes
9th6th
ASCII Table
374th
6th
brainfuck
100th
359th
Card Number Validation
134th
Catalan Numbers
25th
212th
9th5th
Catalan’s Constant
10th15th
7th
21st
11th
8th
6th
7th
6th
4th9th
Christmas Trees
16th
28th
2nd
803rd
8th
Collatz
19th
22nd18th
34th
29th
24th58th
199th
23rd
6th
10th
CSS Colors
10th
Cubes
15th
Day of Week
137th
Diamonds
11th
44th
6th
88th
9th
Divisors
28th
447th53rd
1st
1st
12th
13th
Emirp Numbers
20th
33rd
13th38th
625th
6th
Emirp Numbers (Long)
320th
Emojify
7th
76th
Evil Numbers
27th
44th
29th
601st
14th
11th
Evil Numbers (Long)
21st
17th
365th
Factorial Factorisation
15th
Farey Sequence
6th
19th
19th
210th
Fibonacci
504th
56th
7th
120th
32nd
1st
102nd
66th
67th43rd
Fizz Buzz
85th40th
744th
43rd
1st149th
9th
365th
58th
18th362nd
49th21st64th45th
Foo Fizz Buzz Bar
858th
Gijswijt’s Sequence
7th
11th
Happy Numbers
8th
5th
Happy Numbers (Long)
376th
Inventory Sequence
233rd
Kolakoski Constant
8th
43rd
12th
15th
14th16th
140th
12th
7th
8th4th
Kolakoski Sequence
38th
9th
Leap Years
9th
370th
16th
Leyland Numbers
24th
9th
9th7th
ln 2
31st
Look and Say
25th
14th
10th
8th
Lucky Numbers
248th
Medal Tally
62nd
Morse Decoder
14th
144th
Morse Encoder
13th
Niven Numbers
12th
25th
46th
67th
14th
Niven Numbers (Long)
11th
468th
Number Spiral
187th
Odious Numbers
1st
28th
300th
10th
Odious Numbers (Long)
1st
15th
221st
Pangram Grep
3rd
Pascal’s Triangle
34th
34th
9th
Pernicious Numbers
1st
637th
9th
Pernicious Numbers (Long)
1st
271st
6th
Polyominoes
82nd
Prime Numbers
1st
325th
24th
477th
121st
22nd11th
Prime Numbers (Long)
1st
235th
67th
Quine
136th
1st
72nd
Recamán
9th
9th
Reverse Polish Notation
238th
Rijndael S-box
19th
ROT13
151st
Seven Segment
5th
Sierpiński Triangle
11th15th15th13th17th
73rd39th41st15th11th10th
19th21st19th11th18th11th
28th12th32nd16th15th38th119th22nd15th27th17th17th11th23rd28th27th9th335th14th33rd50th34th8th
12th16th10th
11th7th15th
Smith Numbers
10th
9th
Sudoku
134th
Tongue-twisters
17th
213th
7th
Tower of Hanoi
5th
Trinomial Triangle
13th
United States
12th
337th
Vampire Numbers
5th
Van Eck Sequence
49th
16th
9th
γ
17th
5th
λ
12th
71st48th
9th
26th12th
26th
14th
15th
20th
12th
12th20th
142nd
15th32nd17th
12th8th
10th6th
π
126th
189th76th
42nd
392nd
6th
τ
12th
9th
6th
φ
15th40th
37th15th
73rd
39th22nd
351st
6th
√2
38th
6th
𝑒
29th13th22nd9th84th67th
14th
49th32nd15th34th10th26th
16th
37th
9th50th113th74th
40th11th21st6th41st25th44th13th396th90th15th65th24th
25th8th12th10th6th11th7th12th