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 A162816 a(n) = 12*a(n-1)-33*a(n-2) for n > 1; a(0) = 5, a(1) = 33. 0
 5, 33, 231, 1683, 12573, 95337, 729135, 5603499, 43180533, 333250929, 2574053559, 19891362051, 153752577165, 1188615978297, 9189556693119, 71050353033627, 549348865530597, 4247524736257473, 32841784272579975, 253933094974463091 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Binomial transform of A143647. LINKS Index entries for linear recurrences with constant coefficients, signature (12,-33). FORMULA a(n) = ((5+sqrt(3))*(6+sqrt(3))^n+(5-sqrt(3))*(6-sqrt(3))^n)/2. G.f.: (5-27*x)/(1-12*x+33*x^2). MATHEMATICA LinearRecurrence[{12, -33}, {5, 33}, 40] (* or *) Simplify[With[ {c=Sqrt[3]}, Table[(11(5+c)(6+c)^n+(53+7c)(6-c)^n)/(22(6+c)), {n, 30}]]] (* Harvey P. Dale, Jun 30 2011 *) PROG (MAGMA) [ n le 2 select 28*n-23 else 12*Self(n-1)-33*Self(n-2): n in [1..20] ]; (PARI) Vec((5-27*x)/(1-12*x+33*x^2)+O(x^99)) \\ Charles R Greathouse IV, Jun 30 2011 CROSSREFS Cf. A143647. Sequence in context: A197533 A221441 A083076 * A128418 A335119 A284733 Adjacent sequences:  A162813 A162814 A162815 * A162817 A162818 A162819 KEYWORD nonn,easy AUTHOR Klaus Brockhaus, Jul 14 2009 STATUS approved

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Last modified June 15 17:36 EDT 2021. Contains 345049 sequences. (Running on oeis4.)