0,2
Cf. A041574.
Sequence in context: A031090 A041017 A033837 * A042917 A174049 A141336
Adjacent sequences: A041572 A041573 A041574 * A041576 A041577 A041578
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).