(MAGMAMagma) I:=[4, 72, 584, 4016, 24656, 140624, 761960, 3976704]; [n le 8 select I[n] else 11*Self(n-1)-36*Self(n-2)+16*Self(n-3)+67*Self(n-4)-9*Self(n-5)-10*Self(n-6)+2*Self(n-7): n in [1..30]]; // Vincenzo Librandi, Oct 14 2013
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<a href="/index/Rec#order_07">Index entries for linear recurrences with constant coefficients</a>, signature (11,-36,16,67,-9,-10,2).
G.f.: -4*x*(2*x^7 +4*x^6 -37*x^5 +21*x^4 +30*x^3 -16*x^2 +7*x +1)/((x +1)*(x^2 -4*x +1)^2*(2*x^2 +4*x -1)). [_- _Colin Barker_, Aug 30 2012]
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F. Faase, <a href="http://www.iwriteiam.nl/counting.html">Counting Hamilton Hamiltonian cycles in product graphs</a>
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LinearRecurrence[{11, -36, 16, 67, -9, -10, 2}, {4, 72, 584, 4016, 24656, 140624, 761960, 3976704}, 30] (* Harvey P. Dale, May 04 2018 *)
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<a href="/index/Rec">Index to sequences with entries for linear recurrences with constant coefficients</a>, signature (11,-36,16,67,-9,-10,2).
<a href="/index/Rea#recLCCRec">Index to sequences with linear recurrences with constant coefficients</a>, signature (11,-36,16,67,-9,-10,2).
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F. Faase, <a href="http://home.wxs.nl/~faase009/counting.html">Counting Hamilton cycles in product graphs</a>
More terms from Vincenzo Librandi, Oct 14 2013
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