1,4

A075462 is a(n) without the symmetry restriction.

Table of n, a(n) for n=1..28.

Sequence in context: A068930 A204815 A247642 * A036466 A097526 A051149

Adjacent sequences: A144257 A144258 A144259 * A144261 A144262 A144263

nonn

R. H. Hardin, Sep 16 2008

approved