12 Days of Christmas
60th
99 Bottles of Beer
39th
Arabic to Roman
16th
Ascending Primes
25th
Card Number Validation
51st
Catalan Numbers
78th
Catalan’s Constant
50th
Christmas Trees
77th
Collatz
27th
CSS Colors
78th
Day of Week
88th
Diamonds
150th
Divisors
81st
Emirp Numbers
129th
Emirp Numbers (Long)
75th
Evil Numbers
81st
Evil Numbers (Long)
45th
Fibonacci
134th
Fizz Buzz
1st9th4th
Foo Fizz Buzz Bar
33rd
Happy Numbers
74th
Intersection
27th
Kolakoski Sequence
71st
Leap Years
97th
Look and Say
40th
Lucky Numbers
56th
Mandelbrot
16th
N Queens
42nd
Niven Numbers
258th
Niven Numbers (Long)
98th
Number Spiral
42nd
Odious Numbers
100th
Odious Numbers (Long)
53rd
Pascal’s Triangle
62nd
Prime Numbers
167th
Prime Numbers (Long)
90th
Quine
183rd
Repeating Decimals
28th
Rijndael S-box
42nd
Roman to Arabic
51st
ROT13
18th
Rule 110
51st
Sierpiński Triangle
38th
Spelling Numbers
28th
Time Distance
48th
Tongue-twisters
38th
λ
78th
π
74th
τ
62nd
φ
78th
√2
72nd
𝑒
74th