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A140429
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a(n) = floor(3^(n-1)).
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7
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0, 1, 3, 9, 27, 81, 243, 729, 2187, 6561, 19683, 59049, 177147, 531441, 1594323, 4782969, 14348907, 43046721, 129140163, 387420489, 1162261467, 3486784401, 10460353203, 31381059609, 94143178827, 282429536481, 847288609443
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OFFSET
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0,3
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COMMENTS
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Binomial transform of Jacobsthal numbers A001045.
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LINKS
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FORMULA
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PROG
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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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EXTENSIONS
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STATUS
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approved
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