0,2
Cf. A041236.
Sequence in context: A122696 A023263 A070855 * A015172 A132526 A175978
Adjacent sequences: A041234 A041235 A041236 * A041238 A041239 A041240
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).