0,3
Cf. A041758.
Sequence in context: A023481 A165860 A050774 * A061756 A119028 A046512
Adjacent sequences: A041756 A041757 A041758 * A041760 A041761 A041762
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).