0,1
Cf. A041219.
Sequence in context: A059458 A058943 A041217 * A041917 A109280 A181756
Adjacent sequences: A041215 A041216 A041217 * A041219 A041220 A041221
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).