66763

Properties

Appears in sequences

• Powers of fifth root of 6 rounded down.at n=31A018129
• Powers of fifth root of 6 rounded to nearest integer.at n=31A018130
• Primes that remain prime through 3 iterations of function f(x) = 3x + 4.at n=28A023278
• Consider the version of the Collatz or 3x+1 problem where x -> x/2 if x is even, x -> (3x+1)/2 if x is odd. Define the stopping time of x to be the number of steps needed to reach 1. Sequence gives the number of integers x with stopping time n.at n=40A060322
• Number of two element anti-chains in Riordan trees on n edges (also called non-redundant trees, i.e., ordered trees where no vertex has out-degree equal to 1).at n=11A139263
• a(n) is the total number of parts in the set of partitions of an n X n square lattice into squares, considering only the list of parts.at n=10A226897
• Number of nX4 0..1 arrays with every element equal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.at n=9A297955
• Primes which contain the fax number of the beast (667).at n=31A321001
• Prime numbersat n=6655