12 Days of Christmas
255th
Abundant Numbers
39th
Abundant Numbers (Long)
5th
Catalan Numbers
84th
Christmas Trees
185th
Collatz
138th
CSS Colors
81st
Cubes
155th
Divisors
1st
Emirp Numbers
83rd
Emirp Numbers (Long)
42nd
Evil Numbers
1st
Evil Numbers (Long)
35th
Fibonacci
183rd
Fizz Buzz
56th
Foo Fizz Buzz Bar
1st
Fractions
90th
Game of Life
69th
Happy Numbers
181st
Happy Numbers (Long)
97th
Inventory Sequence
76th
Kolakoski Sequence
19th
Leap Years
140th
Leyland Numbers
8th
Look and Say
84th
Lucky Numbers
74th
Niven Numbers
71st
Niven Numbers (Long)
38th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
172nd
Pangram Grep
1st
Pascal’s Triangle
1st
Pernicious Numbers
89th
Pernicious Numbers (Long)
58th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
72nd
Recamán
90th
Reverse Polish Notation
27th
Smith Numbers
38th
Tongue-twisters
162nd
United States
76th
Vampire Numbers
32nd
Van Eck Sequence
71st
π
190th
τ
152nd
φ
134th
√2
1st
𝑒
1st33rd