0,1
Cf. A041225.
Sequence in context: A022639 A000589 A118936 * A030054 A140542 A101983
Adjacent sequences: A041221 A041222 A041223 * A041225 A041226 A041227
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).