1,4

See A173800 for the numbers k for each n.

T. D. Noe, Table of n, a(n) for n=1..200

Sequence in context: A118314 A002033 A074206 * A108466 A211110 A325828

Adjacent sequences: A173798 A173799 A173800 * A173802 A173803 A173804

nonn

T. D. Noe, Feb 25 2010

approved