0,3
Cf. A042070.
Sequence in context: A006279 A041521 A101003 * A042817 A180698 A082572
Adjacent sequences: A042068 A042069 A042070 * A042072 A042073 A042074
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).