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A110034
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Row sums of a characteristic triangle for the Fibonacci numbers.
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3
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1, 0, -1, -4, -11, -30, -79, -208, -545, -1428, -3739, -9790, -25631, -67104, -175681, -459940, -1204139, -3152478, -8253295, -21607408, -56568929, -148099380, -387729211, -1015088254, -2657535551, -6957518400, -18215019649, -47687540548, -124847601995, -326855265438
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OFFSET
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0,4
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COMMENTS
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LINKS
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FORMULA
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G.f.: (1-3x-x^2+2x^3)/((1-x^2)(1-3x+x^2)).
a(n) = a(n-1)-3a(n-3)+a(n-4).
a(n) = Sum_{k=0..n-1} F(k)*F(k+1) - F(2n) + 1.
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MATHEMATICA
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CROSSREFS
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KEYWORD
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easy,sign
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AUTHOR
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STATUS
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approved
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