0,3
Cf. A041166.
Sequence in context: A064184 A203761 A154750 * A006279 A041521 A101003
Adjacent sequences: A041164 A041165 A041166 * A041168 A041169 A041170
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).