12 Days of Christmas
144th
Abundant Numbers
263rd
Arabic to Roman
107th
Arithmetic Numbers
392nd
Ascending Primes
180th
ASCII Table
20th
Card Number Validation
82nd
Catalan Numbers
104th
Christmas Trees
23rd
Collatz
344th
CSS Colors
139th
Day of Week
168th
Divisors
642nd
385th
Emirp Numbers
27th
Evil Numbers
181st
Evil Numbers (Long)
94th
Factorial Factorisation
7th
Farey Sequence
25th
Fibonacci
341st184th308th
Fizz Buzz
122nd493rd
Foo Fizz Buzz Bar
381st
255th
Forsyth–Edwards Notation
7th
Fractions
10th
Gijswijt’s Sequence
18th
Happy Numbers
80th
Happy Numbers (Long)
53rd
Kolakoski Constant
12th
Kolakoski Sequence
102nd
49th
Levenshtein Distance
105th
3rd
Leyland Numbers
108th
ln 2
73rd
Look and Say
46th
Lucky Numbers
20th
Medal Tally
3rd
Niven Numbers
209th
Niven Numbers (Long)
91st
Odious Numbers
154th
Odious Numbers (Long)
135th
Ordinal Numbers
85th
PalindromemordnilaP
115th
23rd
Pangram Grep
46th
Pascal’s Triangle
119th
Pernicious Numbers
183rd
Pernicious Numbers (Long)
92nd
Prime Numbers
751st147th204th
Prime Numbers (Long)
584th
275th
Quine
435th
Repeating Decimals
13th
Reverse Polish Notation
74th
Roman to Arabic
64th
ROT13
91st
Time Distance
29th
Transpose Sentence
48th
Van Eck Sequence
56th
π
73rd
τ
58th
φ
70th
√2
124th
𝑒
131st