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A192337
Coefficient of x in the reduction of n-th polynomial at A157751 by x^2->x+1.
1
0, 1, 3, 10, 31, 95, 286, 853, 2525, 7436, 21815, 63821, 186328, 543165, 1581591, 4601410, 13378731, 38880803, 112954430, 328063121
OFFSET
1,3
COMMENTS
For an introduction to reductions of polynomials by substitutions such as x^2->x+1, see A192232.
FORMULA
Empirical G.f.: -x^2*(x^2+x-1)/(x^4+6*x^3+x^2-4*x+1). [Colin Barker, Nov 13 2012]
MATHEMATICA
(See A192313.)
CROSSREFS
Sequence in context: A033121 A180432 A237930 * A106517 A363780 A055217
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jun 28 2011
STATUS
approved