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A013745
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a(n) = 9^(3*n + 2).
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1
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81, 59049, 43046721, 31381059609, 22876792454961, 16677181699666569, 12157665459056928801, 8862938119652501095929, 6461081889226673298932241, 4710128697246244834921603689, 3433683820292512484657849089281
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OFFSET
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0,1
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LINKS
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FORMULA
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a(n) = 729*a(n-1); a(0)=81.
G.f.: 81/(1-729*x). (End)
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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