%I #14 Sep 08 2022 08:44:41
%S 49,225,529,961,1521,2209,3025,3969,5041,6241,7569,9025,10609,12321,
%T 14161,16129,18225,20449,22801,25281,27889,30625,33489,36481,39601,
%U 42849,46225,49729,53361,57121
%N a(n) = (8*n + 7)^2.
%H Vincenzo Librandi, <a href="/A017150/b017150.txt">Table of n, a(n) for n = 0..10000</a>
%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (3,-3,1).
%F G.f.: ( -49 - 78*x - x^2 ) / ( (x-1)^3 ). - _R. J. Mathar_, Aug 26 2015
%o (Magma) [(8*n+7)^2: n in [0..35]]; // _Vincenzo Librandi_, Jul 22 2011
%o (PARI) a(n)=(8*n+7)^2 \\ _Charles R Greathouse IV_, Jun 17 2017
%K nonn,easy
%O 0,1
%A _N. J. A. Sloane_
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