1,2

See A075462 for references.

Table of n, a(n) for n=1..29.

Cf. A075464.

Sequence in context: A047608 A130011 A050022 * A115375 A212114 A103650

Adjacent sequences: A137616 A137617 A137618 * A137620 A137621 A137622

hard,nonn

Jacob A. Siehler, Apr 27 2008

approved