12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
brainfuck
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
809
CSS Colors
Cubes
Day of Week
Diamonds
Divisors
432
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
889
Fizz Buzz
Foo Fizz Buzz Bar
630
Fractions
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Inventory Sequence
ISBN
Kolakoski Constant
Kolakoski Sequence
556
Leap Years
622
Levenshtein Distance
Leyland Numbers
ln 2
935
Look and Say
Lucky Numbers
Morse Encoder
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
556
Odious Numbers (Long)
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Prime Numbers
875
Prime Numbers (Long)
821
Quine
1,000
Recamán
Repeating Decimals
Reverse Polish Notation
Rijndael S-box
800
Roman to Arabic
Rule 110
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Time Distance
Tongue-twisters
United States
Vampire Numbers
Van Eck Sequence
Zodiac Signs
γ
837
λ
π
717
53
93
102
130
130
84
106
106
124
84
62
66
90
100
63
69
51
148
85
149
33
67
27
140
163
811
31
τ
704
φ
732
√2
𝑒
725