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%I #15 Sep 08 2022 08:44:41
%S 25,144,361,676,1089,1600,2209,2916,3721,4624,5625,6724,7921,9216,
%T 10609,12100,13689,15376,17161,19044,21025,23104,25281,27556,29929,
%U 32400,34969,37636,40401,43264,46225
%N a(n) = (7*n + 5)^2.
%H Vincenzo Librandi, <a href="/A017042/b017042.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.: -(25 + 69*x + 4*x^2)/(x-1)^3. - _R. J. Mathar_, Jul 14 2016
%o (Magma) [(7*n+5)^2: n in [0..40] ]; // _Vincenzo Librandi_, Jul 18 2011
%o (PARI) a(n)=(7*n+5)^2 \\ _Charles R Greathouse IV_, Feb 13 2017
%K nonn,easy
%O 0,1
%A _N. J. A. Sloane_
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