1,1
Cf. A002110, A128420, A128421, A128657, A128658, A128659, A128660, A128661.
Sequence in context: A076028 A070476 A124159 * A133192 A063684 A059194
Adjacent sequences: A128659 A128660 A128661 * A128663 A128664 A128665
nonn
Pierre CAMI (pierre-cami(AT)bbox.fr), Mar 19 2007