12 Days of Christmas
265th
Abundant Numbers
41st
Abundant Numbers (Long)
8th
Catalan Numbers
85th
Christmas Trees
191st
Collatz
142nd
CSS Colors
82nd
Cubes
157th
Divisors
1st
Emirp Numbers
85th
Emirp Numbers (Long)
45th
Evil Numbers
1st
Evil Numbers (Long)
38th
Fibonacci
187th
Fizz Buzz
58th
Foo Fizz Buzz Bar
1st
Fractions
94th
Game of Life
71st
Happy Numbers
185th
Happy Numbers (Long)
104th
Inventory Sequence
82nd
Kolakoski Sequence
19th
Leap Years
145th
Leyland Numbers
8th
Look and Say
88th
Lucky Numbers
77th
Niven Numbers
76th
Niven Numbers (Long)
42nd
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
174th
Pangram Grep
1st
Pascal’s Triangle
1st
Pernicious Numbers
95th
Pernicious Numbers (Long)
68th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
72nd
Recamán
96th
Reverse Polish Notation
27th
Smith Numbers
41st
Tongue-twisters
168th
United States
78th
Vampire Numbers
32nd
Van Eck Sequence
74th
π
194th
τ
154th
φ
137th
√2
1st
𝑒
1st39th