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12 Days of Christmas
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Abundant Numbers
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Arabic to Roman
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brainfuck
Card Number Validation
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Catalan’s Constant
Christmas Trees
Collatz
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
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Foo Fizz Buzz Bar
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Fractions
Game of Life
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Hexdump
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
N Queens
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
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Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku v2
Ten-pin Bowling
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Hole
Golfer
Bytes
Submitted
Card Number Validation
GolfingSuccess
31
22 hours ago
Gijswijt’s Sequence
Mabeloid
2,001
a day ago
Number Spiral
Mabeloid
301
a day ago
Prime Numbers
Mabeloid
72
a day ago
Prime Numbers (Long)
Mabeloid
5,949
a day ago
Card Number Validation
ovs-code
🥉
29
a day ago
Pernicious Numbers
Mabeloid
101
2 days ago
Pernicious Numbers (Long)
Mabeloid
20,663
2 days ago
Pascal’s Triangle
Mabeloid
770
2 days ago
Inventory Sequence
Mabeloid
2,624
2 days ago
Recamán
Mabeloid
898
2 days ago
Van Eck Sequence
Mabeloid
2,556
2 days ago
Cubes
Mabeloid
4,102
2 days ago
Arithmetic Numbers
Mabeloid
37,643
2 days ago
Fractions
NickTheEASDude
36
3 days ago
Card Number Validation
saito-ta
💎
25
3 days ago
Card Number Validation
MeWhenI
34
3 days ago
Card Number Validation
canissimia
🥈
28
4 days ago
Fibonacci
edsrzf
🥇
13
4 days ago
Card Number Validation
emgordon154
44
4 days ago
Fibonacci
NickTheEASDude
16
4 days ago
Card Number Validation
AlephSquirrel
40
5 days ago
Hexdump
KatieLG
6,138
7 days ago
Emojify
KatieLG
388
7 days ago
π
pardouin
37
8 days ago
Cubes
dokutan
185
8 days ago
12 Days of Christmas
dokutan
456
8 days ago
π
xyangst
1,008
9 days ago
Leap Years
dokutan
39
10 days ago
π
gerritgriebel
1,005
10 days ago
Niven Numbers (Long)
pardouin
🥇
24
11 days ago
Collatz
dokutan
76
12 days ago
Sierpiński Triangle
dokutan
179
12 days ago
Morse Encoder
dokutan
590
12 days ago
Odious Numbers
Mabeloid
74
13 days ago
Odious Numbers (Long)
Mabeloid
1,946
13 days ago
Rule 110
Mabeloid
15,853
13 days ago
Leap Years
Mabeloid
731
13 days ago
Niven Numbers
Mabeloid
92
13 days ago
Niven Numbers (Long)
Mabeloid
7,439
13 days ago
Leyland Numbers
Mabeloid
887
13 days ago
Sierpiński Triangle
Mabeloid
555
13 days ago
Niven Numbers
emgordon154
🥇
21
14 days ago
Kolakoski Sequence
Mabeloid
2,001
14 days ago
Rijndael S-box
Mabeloid
769
14 days ago
ASCII Table
dokutan
129
14 days ago
Fibonacci
dokutan
33
14 days ago
Niven Numbers (Long)
dokutan
69
14 days ago
Pangram Grep
pardouin
🥇
20
14 days ago
Happy Numbers (Long)
pardouin
28
14 days ago
Happy Numbers
pardouin
27
14 days ago
Niven Numbers
dokutan
37
15 days ago
ln 2
Mabeloid
1,004
15 days ago
Look and Say
Mabeloid
1,280
15 days ago
Lucky Numbers
Mabeloid
4,821
15 days ago
Kolakoski Constant
Mabeloid
1,004
15 days ago
Happy Numbers
Mabeloid
108
15 days ago
Jacobi Symbol
emgordon154
109
16 days ago
Foo Fizz Buzz Bar
NickTheEASDude
63
16 days ago
Fizz Buzz
NickTheEASDude
38
16 days ago
Fizz Buzz
RedzGoose
37
17 days ago
Transpose Sentence
NickTheEASDude
🥇
15
17 days ago
Fizz Buzz
Mabeloid
414
17 days ago
Foo Fizz Buzz Bar
Mabeloid
5,720
17 days ago
Fibonacci
Mabeloid
135
17 days ago
Happy Numbers (Long)
Mabeloid
553
17 days ago
Abundant Numbers
Mabeloid
164
17 days ago
Abundant Numbers (Long)
Mabeloid
965
17 days ago
24 Game
Mabeloid
12,433
17 days ago
Factorial Factorisation
Mabeloid
863
18 days ago
Evil Numbers (Long)
Mabeloid
1,951
18 days ago
Evil Numbers
Mabeloid
71
18 days ago
Emirp Numbers
Mabeloid
137
18 days ago
Emirp Numbers (Long)
Mabeloid
1,157
18 days ago
Divisors
Mabeloid
1,167
18 days ago