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A132074
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Row sums of triangle A132073.
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1
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1, 4, 9, 16, 27, 46, 81, 148, 279, 538, 1053, 2080, 4131, 8230, 16425, 32812, 65583, 131122, 262197, 524344, 1048635, 2097214, 4194369, 8388676, 16777287, 33554506, 67108941, 134217808, 268435539, 536870998, 1073741913, 2147483740
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Index to sequences with linear recurrences with constant coefficients, signature (4,-5,2). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 21 2010]
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FORMULA
| Binomial transform of [1, 3, 2, 0, 2, 0, 2, 0, 2,...].
g := (2*x^2+2*x^3-1)/((2*x-1)*(x-1)^2). a(n) = 2^n+3*n-1, n>0. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 21 2010]
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EXAMPLE
| a(4) = 27 = sum of row 4 terms of triangle A132073: (5 + 5 + 7 + 5 + 5).
a(4) = 27 = (1, 4, 6, 4, 1) dot (1, 3, 2, 0, 2) = (1 + 12 + 12 + 0 + 2).
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CROSSREFS
| Cf. A132073.
Sequence in context: A008019 A029896 A009862 * A137354 A113495 A110997
Adjacent sequences: A132071 A132072 A132073 * A132075 A132076 A132077
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KEYWORD
| nonn
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 09 2007
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EXTENSIONS
| More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 21 2010
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