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Search: id:A130294
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| A130294 |
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Degree of the n X n Brauer loop scheme. Also, the sum of components of the Brauer loop model in size n. |
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+0
2
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| 1, 1, 3, 7, 55, 307, 6153, 82977, 4196961, 137460201, 17446527483, 1392263902567
(list; graph; listen)
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OFFSET
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1,3
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LINKS
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A. Knutson and P. Zinn-Justin, A scheme related to the Brauer loop model, Adv. in Math. 214 (2007), 40-77.
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FORMULA
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a(2n)=det(binomial(2i+2j+1,2i)), 0<=i,j<=n-1 a(2n+1)=det(binomial(2i+2j+3,2i+1)), 0<=i,j<=n-1
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CROSSREFS
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Cf. A130306.
Sequence in context: A120788 A041277 A095124 this_sequence A100772 A131652 A046859
Adjacent sequences: A130291 A130292 A130293 this_sequence A130295 A130296 A130297
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KEYWORD
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nonn
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AUTHOR
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Paul Zinn-Justin (pzinn(AT)lptms.u-psud.fr), Aug 06 2007
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