|
%I #8 Mar 30 2012 18:57:34
%S 0,4,10,26,56,116,228,436,814,1494,2704,4840,8584,15108,26418,45938,
%T 79496,136988,235180,402420,686550,1168174,1982880,3358416,5676816,
%U 9578116,16133338,27132746,45565784,76419524,128006004,214167220,357935614
%N 1-sequence of reduction of (2n) by x^2 -> x+1.
%C See A192232 for definition of "k-sequence of reduction of [sequence] by [substitution]".
%F a(n) = 2*A122491(n+1).
%F G.f.: 2*x*(2-x)/((1-x)*(1-x-x^2)^2). [Colin Barker, Feb 11 2012]
%t (See A192305.)
%Y Cf. A192232, A192305, A122491.
%K nonn,easy
%O 1,2
%A _Clark Kimberling_, Jun 27 2011
|
