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%I #27 Sep 08 2022 08:44:41
%S 16,100,256,484,784,1156,1600,2116,2704,3364,4096,4900,5776,6724,7744,
%T 8836,10000,11236,12544,13924,15376,16900,18496,20164,21904,23716,
%U 25600,27556,29584,31684,33856
%N a(n) = (6n + 4)^2.
%H Vincenzo Librandi, <a href="/A016958/b016958.txt">Table of n, a(n) for n = 0..3000</a>
%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (3,-3,1).
%F a(n) = (A016957(n))^2. - _Zerinvary Lajos_, Jun 30 2009
%F Sum_{n>=0} 1/a(n) = A086730. - _Amiram Eldar_, Nov 17 2020
%t Table[(6*n + 4)^2, {n, 0, 30}] (* _Amiram Eldar_, Nov 17 2020 *)
%o (Magma) [(6*n+4)^2: n in [0..50]]; // _Vincenzo Librandi_, May 06 2011
%o (PARI) a(n)=(6*n+4)^2 \\ _Charles R Greathouse IV_, Jun 17 2017
%Y Cf. A016957, A086730.
%K nonn,easy
%O 0,1
%A _N. J. A. Sloane_
%E Notation in formula cleaned up by _R. J. Mathar_, Aug 05 2010
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