12 Days of Christmas
107th
99 Bottles of Beer
141st
Abundant Numbers
113th
Abundant Numbers (Long)
93rd
Arabic to Roman
60th
Arithmetic Numbers
87th
Arrows
121st
Ascending Primes
48th
ASCII Table
122nd
Calendar
59th
Card Number Validation
120th
Catalan Numbers
149th
Catalan’s Constant
93rd
Christmas Trees
26th
Collatz
123rd
CSS Colors
178th
Day of Week
1st
Diamonds
82nd
Divisors
1st
Emirp Numbers
94th
Emirp Numbers (Long)
51st
Emojify
167th
Evil Numbers
1st
Evil Numbers (Long)
44th
Factorial Factorisation
104th
Farey Sequence
150th
Fibonacci
200th
Fizz Buzz
69th
Foo Fizz Buzz Bar
1st
Fractions
132nd
Happy Numbers
150th
Happy Numbers (Long)
87th
Hexdump
59th
Inventory Sequence
79th
ISBN
118th
Kaprekar Numbers
50th
Kolakoski Constant
71st
Kolakoski Sequence
107th
Leap Years
63rd
Leyland Numbers
8th
ln 2
1st
Medal Tally
64th
Niven Numbers
91st
Niven Numbers (Long)
159th
Number Spiral
132nd
Odious Numbers
169th
Odious Numbers (Long)
171st
Ordinal Numbers
121st
PalindromemordnilaP
81st
Pangram Grep
66th
Pascal’s Triangle
90th
Pernicious Numbers
161st
Pernicious Numbers (Long)
70th
Prime Numbers
96th
Prime Numbers (Long)
65th
Quine
84th
Recamán
136th
Rijndael S-box
114th
Roman to Arabic
78th
ROT13
99th
Scrambled Sort
71st
Seven Segment
75th
Spelling Numbers
91st
Tongue-twisters
188th
Transpose Sentence
58th
United States
17th
γ
60th
π
76th
τ
147th
φ
62nd
√2
1st
𝑒
1st