12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
911959
Arrows
902961
Ascending Primes
ASCII Table
brainfuck
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
896971
CSS Colors
845941
Day of Week
884944
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
920965
Evil Numbers
916971981
Evil Numbers (Long)
918957974
Factorial Factorisation
Farey Sequence
919944
Fibonacci
933981986
Fizz Buzz
Foo Fizz Buzz Bar
491979
Fractions
878949
Gijswijt’s Sequence
897948
Happy Numbers
915966
Happy Numbers (Long)
918956
Intersection
Inventory Sequence
921945
ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Sequence
Leap Years
911980
Leyland Numbers
911956
ln 2
920947
Look and Say
935963
Lucky Numbers
Lucky Tickets
883929
Medal Tally
Morse Decoder
Niven Numbers
938976984
Niven Numbers (Long)
Odious Numbers
917969979
Odious Numbers (Long)
914954971
Ordinal Numbers
892969
Pangram Grep
899962
Pascal’s Triangle
Pernicious Numbers
926967977
Pernicious Numbers (Long)
923956
Prime Numbers
908971
Prime Numbers (Long)
Quine
Recamán
Repeating Decimals
Rijndael S-box
ROT13
Seven Segment
Smith Numbers
Star Wars Opening Crawl
Tongue-twisters
Transpose Sentence
874833
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
γ
899906
π
922969
τ
923960
φ
928960
√2
932963
𝑒
929963