0,2
Cf. A041232.
Sequence in context: A004320 A089363 A000574 * A055194 A190730 A173052
Adjacent sequences: A041230 A041231 A041232 * A041234 A041235 A041236
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).