1,1
Cf. A006154.
Sequence in context: A009751 A183070 A032116 * A058864 A136226 A046165
Adjacent sequences: A088178 A088179 A088180 * A088182 A088183 A088184
nonn
Karol A. Penson (penson(AT)lptl.jussieu.fr), Sep 22 2003