12 Days of Christmas
292nd
Abundant Numbers
49th
Abundant Numbers (Long)
6th
Catalan Numbers
100th
Christmas Trees
218th
Collatz
161st
CSS Colors
94th
Cubes
170th
Divisors
1st
Emirp Numbers
96th
Emirp Numbers (Long)
54th
Evil Numbers
1st
Evil Numbers (Long)
44th
Fibonacci
205th
Fizz Buzz
74th
Foo Fizz Buzz Bar
1st
Fractions
112th
Game of Life
85th
Happy Numbers
200th
Happy Numbers (Long)
118th
Inventory Sequence
96th
Kolakoski Sequence
23rd
Leap Years
159th
Leyland Numbers
10th
Look and Say
109th
Lucky Numbers
91st
Niven Numbers
93rd
Niven Numbers (Long)
53rd
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
188th
Pangram Grep
1st
Pascal’s Triangle
1st
Pernicious Numbers
102nd
Pernicious Numbers (Long)
79th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
86th
Recamán
107th
Reverse Polish Notation
31st
Smith Numbers
50th
Tongue-twisters
179th
United States
87th
Vampire Numbers
41st
Van Eck Sequence
84th
π
216th
τ
171st
φ
154th
√2
1st
𝑒
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