12 Days of Christmas
280th
Abundant Numbers
45th
Abundant Numbers (Long)
8th
Catalan Numbers
95th
Christmas Trees
211th
Collatz
153rd
CSS Colors
89th
Cubes
165th
Divisors
1st
Emirp Numbers
92nd
Emirp Numbers (Long)
52nd
Evil Numbers
1st
Evil Numbers (Long)
43rd
Fibonacci
197th
Fizz Buzz
66th
Foo Fizz Buzz Bar
1st
Fractions
107th
Game of Life
78th
Happy Numbers
195th
Happy Numbers (Long)
112th
Inventory Sequence
92nd
Kolakoski Sequence
21st
Leap Years
153rd
Leyland Numbers
8th
Look and Say
100th
Lucky Numbers
86th
Niven Numbers
88th
Niven Numbers (Long)
52nd
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
183rd
Pangram Grep
1st
Pascal’s Triangle
1st
Pernicious Numbers
99th
Pernicious Numbers (Long)
75th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
82nd
Recamán
100th
Reverse Polish Notation
29th
Smith Numbers
48th
Tongue-twisters
177th
United States
84th
Vampire Numbers
36th
Van Eck Sequence
82nd
π
208th
τ
164th
φ
144th
√2
1st
𝑒
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