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A120531
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First differences of successive generalized meta-Fibonacci numbers A120509.
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2
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1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1
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OFFSET
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1,1
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LINKS
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FORMULA
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d(n) = 0 if node n is an inner node, or 1 if node n is a leaf.
g.f.: z (1 + z^3 ( (1 - z^(3 * [1])) / (1 - z^[1]) + z^6 * (1 - z^(4 * [i]))/(1 - z^[1]) ( (1 - z^(3 * [2])) / (1 - z^[2]) + z^18 * (1 - z^(4 * [2]))/(1 - z^[2]) (..., where [i] = (4^i - 1) / 3.
g.f.: D(z) = z * (1 - z^2) * sum(prod(z^2 * (1 - z^(4 * [i])) / (1 - z^[i]), i=1..n), n=0..infinity), where [i] = (4^i - 1) / 3.
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MAPLE
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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Frank Ruskey and Chris Deugau (deugaucj(AT)uvic.ca), Jun 20 2006
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STATUS
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approved
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