12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
9251,000925738424919759837893932930
Abundant Numbers (Long)
9259829261,000
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
brainfuck
Card Number Validation
Catalan Numbers
1,0001,000819
Catalan’s Constant
Christmas Trees
Collatz
CSS Colors
Cubes
Day of Week
Diamonds
Divisors
8899429581,000571,0001,0009281,0001,0001,000
Emirp Numbers
7781,000924952704972686
Emirp Numbers (Long)
Emojify
Evil Numbers
6568001,0008266529629469441,0001,0001,000
Evil Numbers (Long)
Fibonacci
1,0009711,0009776439781,0001,0001,0001,0001,000
Fizz Buzz
8751,0001,0009319581,0001,000
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Happy Numbers
7561,000815778669917950
Happy Numbers (Long)
Hexdump
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
1,0009851,0001,000
Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
9509781,0001,000
Leap Years
8671,0001,0001,0008109479669871,0009371,000
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
921867966925
Lucky Numbers
Lucky Tickets
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
Niven Numbers
1,0001,0001,0009826909809679711,0001,0001,000
Niven Numbers (Long)
Number Spiral
Odious Numbers
6067951,0008726771,0009469321,0001,0001,000
Odious Numbers (Long)
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
9711,0001,0001,0005411,0001,0001,0001,0009431,000
Pernicious Numbers (Long)
Poker
Prime Numbers
9131,0001,0009146849628159211,0001,0001,000
Prime Numbers (Long)
9131,000902958
Proximity Grid
QR Decoder
Quine
1,0005961,0008829435941,000
Recamán
Repeating Decimals
Reverse Polish Notation
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
ROT13
Rule 110
Seven Segment
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
United States
Vampire Numbers
Van Eck Sequence
Zodiac Signs
γ
λ
983
π
6929799901,0001629829739851,000939838
τ
6929799901,0001649829649851,000897827
φ
7789899721,0001089829908791,000914803
√2
7789909251,0001031,0009108561,000833808
𝑒
8489709429561129789509821,000769881