0,2
Cf. A041946.
Sequence in context: A179167 A037185 A101982 * A201970 A102013 A192223
Adjacent sequences: A041944 A041945 A041946 * A041948 A041949 A041950
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).