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A016770
a(n) = (3*n)^6.
1
0, 729, 46656, 531441, 2985984, 11390625, 34012224, 85766121, 191102976, 387420489, 729000000, 1291467969, 2176782336, 3518743761, 5489031744, 8303765625, 12230590464, 17596287801, 24794911296
OFFSET
0,2
FORMULA
G.f.: -729*x*(1+x)*(x^4 + 56*x^3 + 246*x^2 + 56*x + 1)/(x-1)^7. - R. J. Mathar, Jul 07 2017
MATHEMATICA
(3Range[0, 20])^6 (* Harvey P. Dale, May 08 2011 *)
PROG
(Magma) [(3*n)^6: n in [0..25]]; // Vincenzo Librandi, May 09 2011
CROSSREFS
Cf. A001014 (n^6).
Sequence in context: A223281 A268976 A224357 * A224016 A059978 A223208
KEYWORD
nonn,easy
STATUS
approved