0,3
Cf. A041886.
Sequence in context: A131405 A176805 A042243 * A129441 A093971 A065497
Adjacent sequences: A041884 A041885 A041886 * A041888 A041889 A041890
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).