3,1

For a(2*n) see A341730.

Theorem: a(2*n+1) = 2*n+1. For the proof see A342222.

It would be nice to have a bigger b-file.

Scott R. Shannon, Table of n, a(n) for n = 3..140

Cf. A007678, A062361, A288177, A331450, A331451, A342222.

Bisections: A144396, A341730.

Sequence in context: A333822 A075795 A058268 * A087851 A332932 A087852

Adjacent sequences: A341726 A341727 A341728 * A341730 A341731 A341732

nonn

Scott R. Shannon and N. J. A. Sloane, Mar 06 2021

approved