0,2
Cf. A042450.
Sequence in context: A174247 A065139 A093916 * A042929 A082962 A041197
Adjacent sequences: A042448 A042449 A042450 * A042452 A042453 A042454
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).