0,1
Cf. A042319.
Sequence in context: A044739 A166831 A042316 * A166801 A200449 A014552
Adjacent sequences: A042315 A042316 A042317 * A042319 A042320 A042321
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).