1,1
Cf. A002110, A128420, A128421, A128657, A128658, A128660, A128661, A128662.
Sequence in context: A096515 A100586 A139372 * A022555 A047308 A092860
Adjacent sequences: A128656 A128657 A128658 * A128660 A128661 A128662
nonn
Pierre CAMI (pierre-cami(AT)bbox.fr), Mar 19 2007