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A191628
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a(n) = floor((3^n)/(3*n - 2)).
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3
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3, 2, 3, 8, 18, 45, 115, 298, 787, 2108, 5714, 15630, 43089, 119574, 333695, 935798, 2635513, 7450394, 21132026, 60116972, 171481200, 490329056, 1405122072, 4034707664, 11606693280, 33445603004, 96526550442, 278985273840, 807416204292, 2339671955621
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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f[n_] := Floor[(3^n)/(3 n - 2)]
Table[f[n], {n, 1, 40}] (* A191628 *)
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PROG
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CROSSREFS
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KEYWORD
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nonn,less,easy
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AUTHOR
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STATUS
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approved
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