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A133337
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a(3n) = 0, a(3n+1) = a(3n+2) = 5^n.
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0
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0, 1, 1, 0, 5, 5, 0, 25, 25, 0, 125, 125, 0, 625, 625, 0, 3125, 3125, 0, 15625, 15625, 0, 78125, 78125, 0, 390625, 390625, 0, 1953125, 1953125, 0, 9765625, 9765625, 0, 48828125, 48828125, 0, 244140625, 244140625, 0, 1220703125, 1220703125, 0
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OFFSET
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0,5
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LINKS
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FORMULA
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MATHEMATICA
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LinearRecurrence[{0, 0, 5}, {0, 1, 1}, 50] (* Harvey P. Dale, Jun 24 2017 *)
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PROG
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(Magma) I:=[0, 1, 1]; [n le 3 select I[n] else 5*Self(n-3): n in [1..50]]; // Vincenzo Librandi, Sep 11 2015
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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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