12 Days of Christmas
270th
Abundant Numbers
41st
Abundant Numbers (Long)
8th
Catalan Numbers
88th
Christmas Trees
201st
Collatz
147th
CSS Colors
83rd
Cubes
159th
Divisors
1st
Emirp Numbers
89th
Emirp Numbers (Long)
48th
Evil Numbers
1st
Evil Numbers (Long)
41st
Fibonacci
191st
Fizz Buzz
60th
Foo Fizz Buzz Bar
1st
Fractions
98th
Game of Life
75th
Happy Numbers
189th
Happy Numbers (Long)
108th
Inventory Sequence
85th
Kolakoski Sequence
20th
Leap Years
147th
Leyland Numbers
8th
Look and Say
94th
Lucky Numbers
81st
Niven Numbers
83rd
Niven Numbers (Long)
47th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
179th
Pangram Grep
1st
Pascal’s Triangle
1st
Pernicious Numbers
96th
Pernicious Numbers (Long)
71st
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
75th
Recamán
98th
Reverse Polish Notation
27th
Smith Numbers
45th
Tongue-twisters
171st
United States
81st
Vampire Numbers
33rd
Van Eck Sequence
77th
π
202nd
τ
158th
φ
138th
√2
1st
𝑒
1st40th