1,1

Starting the sequence with a(1)=1 instead would have lead to a(n) = n for all n, obviously.

Table of n, a(n) for n=1..57.

Cf. A137518, A161576, A161577.

Sequence in context: A048382 A038179 A192489 * A261271 A186891 A206074

Adjacent sequences: A161575 A161576 A161577 * A161579 A161580 A161581

nonn

Leroy Quet, Jun 14 2009

More terms from Sean A. Irvine, Feb 23 2011

approved