1,1
Cf. A152978, A153000, A160414, A161415.
Sequence in context: A054144 A110057 A174407 * A187152 A086508 A085641
Adjacent sequences: A160724 A160725 A160726 * A160728 A160729 A160730
more,nonn
Omar E. Pol (info(AT)polprimos.com), Jun 13 2009