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A067409
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Ninth column of triangle A067402.
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2
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1, 17, 1377, 111537, 9034497, 731794257, 59275334817, 4801302120177, 388905471734337, 31501343210481297, 2551608800048985057, 206680312803967789617, 16741105337121390958977, 1356029532306832667677137, 109838392116853446081848097, 8896909761465129132629695857
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listen;
history;
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internal format)
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OFFSET
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0,2
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COMMENTS
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The tenth column gives [1, 19, 1900, 190000, ...].
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LINKS
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FORMULA
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a(n) = 17*81^(n-1), n>=1, a(0) = 1.
G.f.: (1-64*x)/(1-81*x).
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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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