0,2
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
(MAGMA) [(3*n)^9: n in [0..20]]; // Vincenzo Librandi, May 09 2011
Sequence in context: A186625 A186622 A016761 * A016845 A016893 A016953
Adjacent sequences: A016770 A016771 A016772 * A016774 A016775 A016776
nonn,easy
N. J. A. Sloane (njas(AT)research.att.com).