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A165314
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a(0)=1, a(1)=6, a(n)=13*a(n-1)-36*a(n-2) for n>1.
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2
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1, 6, 42, 330, 2778, 24234, 215034, 1923018, 17258010, 155125482, 1395342906, 12554940426, 112981880922, 1016786596650, 9150878043258, 82357097082954, 741210652521114, 6670882987788138, 60037895350485690, 540340851995941002
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OFFSET
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0,2
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COMMENTS
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a(n)/a(n-1) tends to 9.
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LINKS
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FORMULA
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G.f.: (1-7x)/(1-13x+36x^2). a(n)=Sum_{k, 0<=k<=n}A165253(n,k)*6^(n-k).
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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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