12 Days of Christmas
319th
Abundant Numbers
131st
Abundant Numbers (Long)
73rd
Catalan Numbers
84th
Christmas Trees
224th
Collatz
193rd
CSS Colors
64th
Cubes
176th
Divisors
118th
Emirp Numbers
14th
Emirp Numbers (Long)
76th
Evil Numbers
1st
Evil Numbers (Long)
38th
Fibonacci
185th
Fizz Buzz
209th
Foo Fizz Buzz Bar
131st
Fractions
143rd
Game of Life
82nd
Happy Numbers
217th
Happy Numbers (Long)
127th
Inventory Sequence
88th
Kolakoski Sequence
64th
Leap Years
145th
Leyland Numbers
86th
Look and Say
118th
Lucky Numbers
91st
Niven Numbers
74th
Niven Numbers (Long)
60th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
197th
Pangram Grep
90th
Pascal’s Triangle
43rd
Pernicious Numbers
92nd
Pernicious Numbers (Long)
77th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
72nd
Recamán
127th
Reverse Polish Notation
68th
Smith Numbers
73rd
Tongue-twisters
204th
United States
88th
Vampire Numbers
71st
Van Eck Sequence
85th
π
215th
τ
167th
φ
164th
√2
1st
𝑒
1st36th