0,3
Cf. A042850.
Sequence in context: A033165 A136739 A186620 * A041280 A132754 A164577
Adjacent sequences: A042848 A042849 A042850 * A042852 A042853 A042854
nonn,frac,easy
N. J. A. Sloane (njas(AT)research.att.com).