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A263890 Number of permutations of [n] containing exactly six occurrences of the consecutive pattern 132. 2
10395, 3012480, 277327917, 16406489088, 763149164940, 30667267344384, 1122292869796980, 38645459934584832, 1279503424901535750, 41344577034084495360, 1317786118947932739210, 41752272883943166935040, 1322547105675938413149900, 42063243395064705257472000 (list; graph; refs; listen; history; text; internal format)
OFFSET

13,1

LINKS

Alois P. Heinz, Table of n, a(n) for n = 13..100

FORMULA

a(n) = A197365(n,6).

MAPLE

b:= proc(u, o, t) option remember; series(`if`(u+o=0, 1,

      add(b(u-j, o+j-1, 0)*`if`(j<=t, x, 1), j=1..u)+

      add(b(u+j-1, o-j, j-1), j=1..o)), x, 7)

    end:

a:= n-> coeff(b(n, 0$2), x, 6):

seq(a(n), n=13..35);

CROSSREFS

Column k=6 of A197365.

Sequence in context: A104439 A290035 A289954 * A279946 A031866 A262800

Adjacent sequences:  A263887 A263888 A263889 * A263891 A263892 A263893

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Oct 28 2015

STATUS

approved

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Last modified June 12 10:58 EDT 2021. Contains 344947 sequences. (Running on oeis4.)