12 Days of Christmas
267th
Abundant Numbers
41st
Abundant Numbers (Long)
8th
Catalan Numbers
86th
Christmas Trees
196th
Collatz
144th
CSS Colors
82nd
Cubes
158th
Divisors
1st
Emirp Numbers
86th
Emirp Numbers (Long)
45th
Evil Numbers
1st
Evil Numbers (Long)
40th
Fibonacci
187th
Fizz Buzz
58th
Foo Fizz Buzz Bar
1st
Fractions
94th
Game of Life
72nd
Happy Numbers
188th
Happy Numbers (Long)
106th
Inventory Sequence
84th
Kolakoski Sequence
19th
Leap Years
146th
Leyland Numbers
8th
Look and Say
93rd
Lucky Numbers
77th
Niven Numbers
77th
Niven Numbers (Long)
42nd
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
175th
Pangram Grep
1st
Pascal’s Triangle
1st
Pernicious Numbers
95th
Pernicious Numbers (Long)
70th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
72nd
Recamán
96th
Reverse Polish Notation
27th
Smith Numbers
41st
Tongue-twisters
169th
United States
78th
Vampire Numbers
32nd
Van Eck Sequence
75th
π
199th
τ
156th
φ
137th
√2
1st
𝑒
1st40th