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 A104001 Triangle T(n,k) read by rows: number of permutations in S_n avoiding all k-length patterns starting with fixed m, 2
 2, 4, 6, 8, 18, 24, 16, 54, 96, 120, 32, 162, 384, 600, 720, 64, 486, 1536, 3000, 4320, 5040, 128, 1458, 6144, 15000, 25920, 35280, 40320, 256, 4374, 24576, 75000, 155520, 246960, 322560, 362880, 512, 13122, 98304, 375000, 933120, 1728720 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 3,1 LINKS FORMULA T(n, k) = (k-2)! * (k-1)^(n+1-k). EXAMPLE 2 4,6 8,18,24 16,54,96,120 32,162,384,600,720 64,486,1536,3000,4320,5040 128,1458,6144,15000,25920,35280,40320 CROSSREFS Sequence in context: A100055 A334031 A304660 * A048784 A152491 A329738 Adjacent sequences:  A103998 A103999 A104000 * A104002 A104003 A104004 KEYWORD nonn,tabl AUTHOR Ralf Stephan, Feb 26 2005 STATUS approved

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Last modified June 4 01:32 EDT 2020. Contains 334809 sequences. (Running on oeis4.)