12 Days of Christmas
141st
99 Bottles of Beer
110th
Arabic to Roman
23rd
Ascending Primes
30th
Card Number Validation
55th
Catalan Numbers
78th
Catalan’s Constant
55th
Christmas Trees
88th
Collatz
27th
CSS Colors
133rd
Day of Week
88th
Divisors
81st
Evil Numbers
80th
Fibonacci
134th
Fizz Buzz
1st9th1st
Foo Fizz Buzz Bar
33rd
Happy Numbers
66th
Intersection
77th
Kolakoski Sequence
71st
Leap Years
97th
Look and Say
40th
Lucky Numbers
55th
Mandelbrot
22nd
N Queens
42nd
Niven Numbers
255th
Niven Numbers (Long)
96th
Number Spiral
55th
Odious Numbers
122nd
Odious Numbers (Long)
61st
Pascal’s Triangle
62nd
Prime Numbers
165th
Prime Numbers (Long)
89th
Quine
182nd
Repeating Decimals
31st
Rijndael S-box
52nd
Roman to Arabic
78th
ROT13
34th
Rule 110
50th
Sierpiński Triangle
38th
Spelling Numbers
67th
Time Distance
48th
Tongue-twisters
92nd
λ
93rd
π
80th
τ
62nd
φ
111th
√2
69th
𝑒
76th