1,2
Table of n, a(n) for n=1..17.
Cf. A161206, A161207, A161208.
Sequence in context: A017882 A017872 A206495 * A279513 A000026 A005599
Adjacent sequences: A161206 A161207 A161208 * A161210 A161211 A161212
more,nonn
Omar E. Pol, Jun 08 2009
approved