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%I #4 Jul 02 2023 18:07:22
%S 1,6,33,171,849,4083,19161,88203,399777,1789155,7923369,34780155,
%T 151526385,655905747,2823355257,12093944427,51582654273,219172472259,
%U 928100356425,3918172435419,16496161201041,69279692903091
%N 3^n+3n4^(n-1).
%C Binomial transform of A086090
%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (11, -40, 48).
%F G.f.: (1-5x+7x^2)/((1-3x)(1-4x)^2)
%Y Cf. A086092.
%K easy,nonn
%O 0,2
%A _Paul Barry_, Jul 09 2003
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