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A013716
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a(n) = 11^(2*n + 1).
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4
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11, 1331, 161051, 19487171, 2357947691, 285311670611, 34522712143931, 4177248169415651, 505447028499293771, 61159090448414546291, 7400249944258160101211, 895430243255237372246531
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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) = 121*a(n-1), a(0)=11.
G.f.: 11/(1-121*x). (End)
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MAPLE
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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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