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A181288
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Numbers of the form i*6^j-1 (i=1..5, j >= 0).
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9
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0, 1, 2, 3, 4, 5, 11, 17, 23, 29, 35, 71, 107, 143, 179, 215, 431, 647, 863, 1079, 1295, 2591, 3887, 5183, 6479, 7775, 15551, 23327, 31103, 38879, 46655, 93311, 139967, 186623, 233279, 279935, 559871, 839807, 1119743, 1399679, 1679615, 3359231, 5038847, 6718463, 8398079, 10077695, 20155391, 30233087
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OFFSET
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1,3
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LINKS
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FORMULA
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G.f.: x^2*(x^4+x^3+x^2+x+1) / ((x-1)*(6*x^5-1)). [Colin Barker, Feb 01 2013]
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MATHEMATICA
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Union[Flatten[Table[i*6^j-1, {j, 0, 20}, {i, 5}]]] (* Harvey P. Dale, Nov 12 2012 *)
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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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