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A360262
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Determinant of the pentadiagonal symmetric nXn Toeplitz Matrix with a=b=1, c=3.
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0
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1, 1, 0, -4, 56, 177, 25, -248, 1536, 19448, 10025, 2313, -78584, 1525084, 2046000, 1990649, -12721279, 80406480, 282880000, 276053680, -672007599, 1449521681, 28914914000, 32747999676, 14429332456, -221875825343
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OFFSET
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0,4
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LINKS
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FORMULA
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G.f. ( -1-3*x ) / ( (3*x-1)*(81*x^4+45*x^3+13*x^2+5*x+1) ).
a(n)= -2*a(n-1) +2*a(n-2) -6*a(n-3) +54*a(n-4) +243*a(n-5)
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CROSSREFS
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KEYWORD
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sign,easy
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AUTHOR
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STATUS
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approved
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