1,1
Cf. A022903, A029905.
Sequence in context: A177091 A074186 A064147 * A137920 A126581 A003038
Adjacent sequences: A122526 A122527 A122528 * A122530 A122531 A122532
hard,nonn
Sergei Bernstein (sergeibernstein(AT)gmail.com), Sep 17 2006