0,3
Cf. A042692.
Sequence in context: A167218 A013045 A007506 * A172037 A128297 A183291
Adjacent sequences: A042690 A042691 A042692 * A042694 A042695 A042696
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).