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A192345
Constant term of the reduction of n-th polynomial at A161516 by x^2->x+1.
1
0, 1, 2, 17, 48, 245, 850, 3709, 14016, 57817, 225890, 912473, 3610800, 14470637, 57541426, 229912165, 915917568, 3655472497, 14572774850, 58135559777, 231822774960, 924665246117, 3687589909522, 14707675592461, 58656853828800, 233942936910025
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*(3*x^2+1)/(9*x^4+6*x^3-10*x^2-2*x+1). [Colin Barker, Nov 13 2012]
EXAMPLE
(See A192344.)
MATHEMATICA
(See A192344.)
CROSSREFS
Sequence in context: A141860 A105691 A360416 * A212836 A338564 A125609
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jun 28 2011
STATUS
approved