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A189739
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a(1)=3, a(2)=5, a(n)=3*a(n-1) + 5*a(n-2).
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14
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3, 5, 30, 115, 495, 2060, 8655, 36265, 152070, 637535, 2672955, 11206540, 46984395, 196985885, 825879630, 3462568315, 14517103095, 60864150860, 255177968055, 1069854658465, 4485453815670, 18805634739335, 78844173296355, 330560693585740, 1385902947238995
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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LinearRecurrence[{3, 5}, {3, 5}, 40]
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PROG
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(Maxima) a[1]:3$ a[2]:5$ a[n]:=3*a[n-1]+5*a[n-2]$ makelist(a[n], n, 1, 25); /* Bruno Berselli, May 24 2011 */
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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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