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Search: id:A013700
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| A013700 |
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Degree of variety K_{2,n}^3. |
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+0
5
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| 1, 128, 6765, 265720, 9112264, 290926848, 8916942687, 266668876540, 7853149169635, 228982270335000, 6632994268595136, 191292945772217856, 5500214758962096400, 157819424038439232000, 4521902974531722618723
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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M. S. Ravi et al., Dynamic pole assignment and Schubert calculus, SIAM J. Control Optimization, 34 (1996), 813-832, esp. p. 825.
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PROGRAM
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(PARI) K(n, q=3)=(2*n+n*q+2*q)!*sum(j=0, q, ((q-2*j)*(n+2)+1)/(n+j*(n+2))!/(n+1+(q-j)*(n+2))!)
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CROSSREFS
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Cf. A013698 (q=1), A013699 (q=2), A013701 (q=4), A013702 (q=5).
Sequence in context: A128802 A022150 A008791 this_sequence A035817 A001661 A093532
Adjacent sequences: A013697 A013698 A013699 this_sequence A013701 A013702 A013703
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KEYWORD
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nonn,easy
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AUTHOR
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Joachim.Rosenthal(AT)nd.edu (Joachim Rosenthal)
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EXTENSIONS
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Edited by Ralf Stephan (ralf(AT)ark.in-berlin.de), May 13 2003
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