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 A140713 Triangle read by rows: T(n,k) is the number of white corners of rank k in all the permutations of {1,2,...,n} (n>=2, 0<=k<=n-2; for definitions see the Eriksson-Linusson references). 1
 1, 5, 1, 26, 9, 2, 154, 70, 26, 6, 1044, 562, 268, 102, 24, 8028, 4860, 2700, 1308, 504, 120, 69264, 45756, 28224, 15828, 7728, 3000, 720 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 2,2 COMMENTS Sum of row n is A140712(n). T(n,0) = A001705(n-1). T(n,n-2) = (n-2)!. REFERENCES K. Eriksson and S. Linusson. Combinatorics of Fulton's essential set. Duke Mathematical Journal 85(1):61-76, 1996. LINKS K. Eriksson and S. Linusson, The size of Fulton's essential set, Electronic J. Combinatorics, Vol. 2, #R6, 1995. K. Eriksson and S. Linusson, Combinatorics of Fulton's essential set, ResearchGate, 1998. EXAMPLE Triangle starts: 1; 5,1; 26,9,2; 154,70,26,6; 1044,562,268,102,24; CROSSREFS Cf. A001705, A140711, A140712. Sequence in context: A264131 A075500 A096645 * A125906 A146414 A146374 Adjacent sequences:  A140710 A140711 A140712 * A140714 A140715 A140716 KEYWORD nonn,tabl,more AUTHOR Emeric Deutsch, May 29 2008 STATUS approved

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Last modified April 7 13:36 EDT 2020. Contains 333305 sequences. (Running on oeis4.)