12 Days of Christmas
141st
99 Bottles of Beer
110th
Arabic to Roman
23rd
Ascending Primes
30th
Card Number Validation
56th
Catalan Numbers
78th
Catalan’s Constant
55th
Christmas Trees
89th
Collatz
27th
CSS Colors
134th
Day of Week
88th
Diamonds
148th
Divisors
81st
Emirp Numbers
196th
Emirp Numbers (Long)
74th
Evil Numbers
81st
Evil Numbers (Long)
45th
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
23rd
N Queens
42nd
Niven Numbers
258th
Niven Numbers (Long)
98th
Number Spiral
56th
Odious Numbers
100th
Odious Numbers (Long)
53rd
Pascal’s Triangle
62nd
Prime Numbers
167th
Prime Numbers (Long)
90th
Quine
183rd
Repeating Decimals
32nd
Rijndael S-box
52nd
Roman to Arabic
80th
ROT13
35th
Rule 110
50th
Sierpiński Triangle
38th
Spelling Numbers
69th
Time Distance
48th
Tongue-twisters
92nd
λ
93rd
π
81st
τ
63rd
φ
112th
√2
72nd
𝑒
78th