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Coefficient of x in the reduction by (x^2->x+1) of the polynomial p(n,x) defined below at Comments.
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%I #5 Mar 30 2012 18:57:37

%S 0,1,3,11,51,281,1808,13333,111041,1031758,10588015,118985914,

%T 1453708722,19189390169,272212629009,4130239145929,66751752077187,

%U 1144920631189237,20772556460037154,397492611715916267,8000930139415926955

%N Coefficient of x in the reduction by (x^2->x+1) of the polynomial p(n,x) defined below at Comments.

%C The titular polynomial is defined by p(n,x)=n*p(n-1,x)+(x^2)*p(n-2,x), with p(0,x)=1, p(1,x)=x. For discussions of polynomial reduction, see A192232, A192744, and A192872.

%t (See A192924.)

%Y Cf. A192232, A192744, A192924.

%K nonn

%O 0,3

%A _Clark Kimberling_, Jul 12 2011