0,1
Cf. A042447.
Sequence in context: A042440 A190520 A042448 * A042450 A042452 A042454
Adjacent sequences: A042443 A042444 A042445 * A042447 A042448 A042449
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).