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 A087983 Number of different values taken by permanent of n X n (0,1)-matrix. 10
 1, 2, 3, 6, 16, 51, 220, 1179 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Table of n, a(n) for n=0..7. Index entries for sequences related to binary matrices EXAMPLE For a 4 X 4 matrix the 16 possible permanents and their multiplicieties are: {{0, 27713}, {1, 13032}, {2, 10800}, {3, 4992}, {4, 4254}, {5, 1440}, {6, 1536}, {7, 576}, {8, 648}, {9, 24}, {10, 288}, {11, 96}, {12, 48}, {14, 72}, {18, 16}, {24, 1}} CROSSREFS Cf. A089477, A089479, A089472. Sequence in context: A219024 A145860 A305190 * A340911 A328409 A103593 Adjacent sequences: A087980 A087981 A087982 * A087984 A087985 A087986 KEYWORD nonn,more AUTHOR Wouter Meeussen, Oct 29 2003 EXTENSIONS a(6)=220 from Gordon F. Royle, Nov 05 2003 a(7) from Giovanni Resta, Mar 29 2006 a(0)=1 prepended by Alois P. Heinz, Apr 28 2020 STATUS approved

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Last modified May 18 07:16 EDT 2024. Contains 372618 sequences. (Running on oeis4.)