0,3

Conjecture: for every a(n), also A054429(a(n)) is in the sequence. Conversely, if i is not in the sequence, then neither is A054429(i).

Antti Karttunen, Table of n, a(n) for n = 0..171

Those i, for which A209861(i)=i, or equally A209862(i)=i.

A209863 gives the number of these fixed points in each range [2^(n-1),(2^n)-1].

Sequence in context: A023779 A247812 A050724 * A287513 A194403 A305707

Adjacent sequences: A209857 A209858 A209859 * A209861 A209862 A209863

nonn

Antti Karttunen, Mar 24 2012

approved