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A263889 Number of permutations of [n] containing exactly five occurrences of the consecutive pattern 132. 2
945, 140160, 8451954, 354288384, 12220104063, 375886190592, 10790720535960, 297346489233408, 8010916259737230, 213667262746914816, 5691371451612082740, 152338392950319636480, 4115775817227930936570, 112602904310385883054080, 3126998971137511212293880 (list; graph; refs; listen; history; text; internal format)
OFFSET

11,1

LINKS

Alois P. Heinz, Table of n, a(n) for n = 11..100

FORMULA

a(n) = A197365(n,5).

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, 6)

    end:

a:= n-> coeff(b(n, 0$2), x, 5):

seq(a(n), n=11..35);

CROSSREFS

Column k=5 of A197365.

Sequence in context: A334975 A289953 A112491 * A133353 A322252 A119240

Adjacent sequences:  A263886 A263887 A263888 * A263890 A263891 A263892

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Oct 28 2015

STATUS

approved

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Last modified May 28 17:37 EDT 2020. Contains 334684 sequences. (Running on oeis4.)