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a(n) = (9*n)^12.
1

%I #18 Jan 29 2026 20:16:35

%S 0,282429536481,1156831381426176,150094635296999121,

%T 4738381338321616896,68952523554931640625,614787626176508399616,

%U 3909188328478827879681,19408409961765342806016,79766443076872509863361,282429536481000000000000

%N a(n) = (9*n)^12.

%H Vincenzo Librandi, <a href="/A017172/b017172.txt">Table of n, a(n) for n = 0..10000</a>

%H <a href="/index/Rec#order_13">Index entries for linear recurrences with constant coefficients</a>, signature (13, -78, 286, -715, 1287, -1716, 1716, -1287, 715, -286, 78, -13, 1).

%t (9Range[0,20])^12 (* _Harvey P. Dale_, Mar 04 2011 *)

%o (Magma) [(9*n)^12: n in [0..15]]; // _Vincenzo Librandi_, Jul 22 2011

%K nonn,easy

%O 0,2

%A _N. J. A. Sloane_