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%I #9 May 09 2019 10:03:20
%S 0,2,6,26,102,416,1684,6838,27746,112606,456974,1854504,7525952,
%T 30541874,123945206,502995202,2041258182,8283846440,33617556212,
%U 136426972038,553648771426,2246820826854,9118062006846,37002974944592,150165698996096,609403357129026,2473084427154950
%N The sequence denoted by p_n used in the calculation of A323260.
%H K. A. Van'kov, V. M. Zhuravlyov, <a href="https://www.mccme.ru/free-books/matpros/pdf/mp-22.pdf#page=127">Regular tilings and generating functions</a>, Mat. Pros. Ser. 3, issue 22, 2018 (127-157) [in Russian]. See Table 1.
%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (5,-3,-5,7,-1).
%F Van'kov and Zhuravlyov give recurrences.
%F a(n) = 2*A323266(n).
%F G.f.: 2*x^2*(x-1)^2/(1-5*x+3*x^2+5*x^3-7*x^4+x^5) . - _R. J. Mathar_, Jan 11 2019
%t LinearRecurrence[{5,-3,-5,7,-1},{0,2,6,26,102},30] (* _Harvey P. Dale_, May 09 2019 *)
%Y Cf. A323260-A323269.
%K nonn,easy
%O 1,2
%A _N. J. A. Sloane_, Jan 09 2019
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