0,3
Cf. A041402.
Sequence in context: A171686 A027164 A166119 * A077126 A172113 A172112
Adjacent sequences: A041400 A041401 A041402 * A041404 A041405 A041406
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).