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A165231
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a(0)=1, a(1)=8, a(n)=16*a(n-1)-8*a(n-2) for n>1 .
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1
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1, 8, 120, 1856, 28736, 444928, 6888960, 106663936, 1651511296, 25570869248, 395921817600, 6130182127616, 94915539501056, 1469607174995968, 22754390483927040, 352313390342864896, 5454979121614422016
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OFFSET
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0,2
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LINKS
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FORMULA
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G.f.: (1-8*x)/(1-16*x+8x^2) .
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MATHEMATICA
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LinearRecurrence[{16, -8}, {1, 8}, 30] (* Harvey P. Dale, Jul 04 2011 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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