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%I #16 Aug 31 2018 02:53:24
%S 16,256,784,1600,2704,4096,5776,7744,10000,12544,15376,18496,21904,
%T 25600,29584,33856,38416,43264,48400,53824,59536,65536,71824,78400,
%U 85264,92416,99856,107584,115600
%N a(n) = (12*n + 4)^2.
%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (3,-3,1).
%F G.f.: 16*(1 + 13*x + 4*x^2)/(1-x)^3.
%F a(n) = 16*A016778(n).
%F a(n) = a(n-1) + 288*n - 48, n >= 1. - _Vincenzo Librandi_, Mar 20 2011
%o (PARI) a(n)=(12*n+4)^2 \\ _Charles R Greathouse IV_, Jun 17 2017
%K nonn,easy
%O 0,1
%A _N. J. A. Sloane_