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%I #14 Oct 21 2022 21:20:54
%S 2,19,166,731,2194,5227,10694,19651,33346,53219,80902,118219,167186,
%T 230011,309094,407027,526594,670771,842726,1045819,1283602,1559819,
%U 1878406,2243491,2659394,3130627,3661894,4258091,4924306,5665819,6488102,7396819,8397826
%N a(n) = 8*n^4 + 9*n^2 + 2.
%C Minimal norm of a sequence of 3-D lattices that converges to the FCC lattice.
%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (5,-10,10,-5,1).
%t Table[8n^4+9n^2+2,{n,0,40}] (* _Harvey P. Dale_, Nov 26 2018 *)
%o (PARI) a(n)=8*n^4+9*n^2+2 \\ _Charles R Greathouse IV_, Oct 21 2022
%Y Cf. A082942.
%K nonn,easy
%O 0,1
%A _N. J. A. Sloane_, Nov 17 2008
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