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A177676 Number of permutations of 4 copies of 1..n avoiding adjacent step pattern up, up, up, up, up, up. 0
1, 1, 70, 34650, 63063000, 305540235000, 3246670537110000, 66471564122981413201, 2389990877540259562671201, 140752914446323991227575378870, 12859891096524517937525915077936650, 1745170838822213670914740929271388502150, 339448526227710036385042441267361806617147750 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..12.

Mingjia Yang, Doron Zeilberger, Increasing Consecutive Patterns in Words, arXiv:1805.06077 [math.CO], 2018.

CROSSREFS

Cf. A014608.

Sequence in context: A177671 A177656 A177657 * A014608 A185401 A172555

Adjacent sequences:  A177673 A177674 A177675 * A177677 A177678 A177679

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 10 2010

EXTENSIONS

a(9)-a(12) from Alois P. Heinz, Aug 08 2018

STATUS

approved

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Last modified January 17 18:48 EST 2019. Contains 319251 sequences. (Running on oeis4.)