12 Days of Christmas
265th
Abundant Numbers
40th
Abundant Numbers (Long)
8th
Catalan Numbers
85th
Christmas Trees
189th
Collatz
141st
CSS Colors
81st
Cubes
157th
Divisors
1st
Emirp Numbers
85th
Emirp Numbers (Long)
45th
Evil Numbers
1st
Evil Numbers (Long)
38th
Fibonacci
186th
Fizz Buzz
58th
Foo Fizz Buzz Bar
1st
Fractions
92nd
Game of Life
70th
Happy Numbers
184th
Happy Numbers (Long)
103rd
Inventory Sequence
80th
Kolakoski Sequence
19th
Leap Years
145th
Leyland Numbers
8th
Look and Say
87th
Lucky Numbers
76th
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
94th
Pernicious Numbers (Long)
65th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
72nd
Recamán
95th
Reverse Polish Notation
27th
Smith Numbers
41st
Tongue-twisters
166th
United States
78th
Vampire Numbers
32nd
Van Eck Sequence
74th
π
194th
τ
154th
φ
136th
√2
1st
𝑒
1st37th