12 Days of Christmas
491st
1,348th
99 Bottles of Beer
135th
1,054th
Abundant Numbers
48th
358th
Abundant Numbers (Long)
94th
859th
Arabic to Roman
685th
Arithmetic Numbers
313th
Ascending Primes
211th
ASCII Table
76th
451st
Billiards
239th
Card Number Validation
316th
Catalan Numbers
216th
30th
Catalan’s Constant
73rd
202nd
Christmas Trees
60th
674th
Collatz
324th
1,147th
Cubes
24th
381st
Diamonds
113th
240th
Divisors
210th
473rd
Emirp Numbers
567th
289th
Emirp Numbers (Long)
224th
364th
Evil Numbers
536th
46th438th
Evil Numbers (Long)
323rd
42nd638th
Factorial Factorisation
81st
330th
Farey Sequence
373rd
Fibonacci
448th
55th
Fizz Buzz
1,953rd8,892nd
Foo Fizz Buzz Bar
202nd
1,068th
Fractions
261st
489th
Game of Life
387th
Gijswijt’s Sequence
274th
Happy Numbers
563rd
495th
Happy Numbers (Long)
75th
600th
Hexdump
384th
Intersection
58th
578th
Inventory Sequence
231st
174th
ISBN
176th
673rd
Jacobi Symbol
177th
Kolakoski Constant
24th
248th
Kolakoski Sequence
87th
37th
Leap Years
150th
11th
Levenshtein Distance
212th
Leyland Numbers
185th
400th
Look and Say
100th
546th
Lucky Numbers
262nd
84th
Lucky Tickets
89th
293rd
Niven Numbers
325th
8th
Niven Numbers (Long)
34th
Number Spiral
223rd
311th
Odious Numbers
400th
44th272nd
Odious Numbers (Long)
287th
42nd
Ordinal Numbers
255th
702nd320th
PalindromemordnilaP
102nd226th309th
Pangram Grep
153rd
612th
Pascal’s Triangle
205th
239th
Pernicious Numbers
1,178th
39th
Pernicious Numbers (Long)
237th
97th
Prime Numbers
321st
117th502nd
Prime Numbers (Long)
407th
108th
Quine
726th
168th
Recamán
115th
391st
Repeating Decimals
221st
Reverse Polish Notation
100th
610th
Rijndael S-box
262nd
Roman to Arabic
155th
547th
ROT13
161st
271st
Rule 110
194th
217th
Seven Segment
461st
Sierpiński Triangle
73rd
152nd
Smith Numbers
466th
Spelling Numbers
311th
519th
Tic-tac-toe
129th
288th
Tongue-twisters
902nd
Tower of Hanoi
164th
Transpose Sentence
447th
United States
Vampire Numbers
101st
333rd
Van Eck Sequence
526th
187th
Zeckendorf Representation
429th
π
249th
333rd
τ
279th
324th
φ
233rd
145th
√2
262nd
4th
𝑒
350th
68th