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Search: id:A124671
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| A124671 |
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Row sums of A126277 = binomial transform of (1, 2, 2, 3, 4, 4, 4,...) |
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+0
2
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| 1, 3, 7, 16, 37, 85, 191, 418, 893, 1871, 3863, 7892, 16005, 32297
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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G.f.: x*(1-3*x+3*x^2)/((1-2*x)*(x-1)^4) [From Maksym Voznyy (voznyy(AT)mail.ru), Aug 14 2009]
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EXAMPLE
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a(4) = 16 = sums of 4-th row terms of A126277: (1 + 4 + 7 + 4).
a(4) = 16 = 1*1 + 3*2 + 3*2 + 1*3.
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CROSSREFS
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Cf. A126277.
Sequence in context: A020746 A033303 A078056 this_sequence A123392 A130691 A095263
Adjacent sequences: A124668 A124669 A124670 this_sequence A124672 A124673 A124674
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Dec 23 2006
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EXTENSIONS
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G.f. proposed by Maksym Voznyy checked and corrected by R. J. Mathar, Sep 16 2009.
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