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A013886
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a(n) = 18^(5*n + 1).
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1
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18, 34012224, 64268410079232, 121439531096594251776, 229468251895129407139872768, 433595865796975883590475106484224, 819308872942260126404286866009182175232, 1548139828427760582529495524831238344488779776, 2925315479322586708409093799864313376118974623776768
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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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MATHEMATICA
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18^(5*Range[0, 20]+1) (* or *) NestList[1889568#&, 18, 10] (* Harvey P. Dale, Oct 29 2016 *)
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PROG
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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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