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1-sequence of reduction of binomial coefficient sequence B(n,4)=A000332 by x^2 -> x+1.
2

%I #7 May 04 2014 17:37:34

%S 0,5,20,90,300,930,2610,6900,17295,41605,96660,218145,480225,1034765,

%T 2188385,4552745,9334760,18892805,37794765,74817520,146702410,

%U 285169310,549948760,1052879110,2002263910,3784182685,7110957850,13291250220

%N 1-sequence of reduction of binomial coefficient sequence B(n,4)=A000332 by x^2 -> x+1.

%C See A192232 for definition of "k-sequence of reduction of [sequence] by [substitution]".

%F a(n) = 5*A192069(n).

%F Conjecture: G.f.: 5*x^2*(1-2*x+4*x^2-3*x^3+x^4) / ( (x-1)*(x^2+x-1)^5 ). - _R. J. Mathar_, May 04 2014

%t (See A192248.)

%Y Cf. A192232, A192248, A192069.

%K nonn

%O 1,2

%A _Clark Kimberling_, Jun 27 2011