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 A133644 Triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n) = largest permanent of any n X n (0,1) matrix with k 1's in each row and column. 1
 1, 1, 2, 1, 2, 6, 1, 4, 9, 24, 1, 4, 13, 44, 120, 1, 8, 36, 82, 265, 720, 1, 8, 54, 148, 580, 1854, 5040, 1, 16, 81, 576, 1313, 4752, 14833, 40320, 1, 16, 216, 1056, 2916, 12108, 43424, 133496, 362880, 1, 32, 324, 1968, 14400, 32826, 127044, 440192, 1334961, 3628800, 1, 32, 486, 3608, 31800, 86400, 373208, 1448640, 4893072, 14684570, 39916800 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 REFERENCES L. Hogben, ed., Handbook of Linear Algebra, pp. 31-6, 31-7. LINKS G.-S. Cheon and I. M. Wanless, An update on Minc's survey on open problems involving permanents, Lin. Alg. Applic., 403 (2005), 314-342. EXAMPLE Triangle begins: 1 1,2 1,2,6 1,4,9,24 1,4,13,44,120 1,8,36,82,265,720 1,8,54,148,580,1854,5040 CROSSREFS Sequence in context: A232483 A338870 A265894 * A265870 A341409 A284466 Adjacent sequences: A133641 A133642 A133643 * A133645 A133646 A133647 KEYWORD nonn,tabl AUTHOR N. J. A. Sloane, Dec 17 2007 STATUS approved

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Last modified March 21 19:39 EDT 2023. Contains 361410 sequences. (Running on oeis4.)