A177615 -id:A177615 - cp's OEIS frontend

A177596 Number of permutations of 3 copies of 1..n avoiding adjacent step pattern up, up.

1, 1, 20, 1109, 149777, 40505320, 19324787629, 14885613436177, 17346023517866756, 29095672934852234945, 67554301929824585326841, 210353969049597164741983000, 855886755812900060235077981449, 4452236180954942685194928540509281

Offset: 0

R. H. Hardin, May 10 2010

nonn

Mingjia Yang and Doron Zeilberger, Increasing Consecutive Patterns in Words, arXiv:1805.06077 [math.CO], 2018.
Mingjia Yang, An experimental walk in patterns, partitions, and words, Ph. D. Dissertation, Rutgers University (2020).

Cf. A177605, A177615.

a(10) from Alois P. Heinz, Oct 22 2013

a(0), a(11)-a(13) from Alois P. Heinz, Aug 08 2018

A177605 Number of permutations of 3 copies of 1..n avoiding adjacent step pattern up, up, up, up.

Original entry on oeis.org

1, 1, 20, 1680, 369600, 166923119, 134612399509, 176468898415460, 351456009607660440, 1010384984894493146400, 4028532188816344883922611, 21572165225621811583520157531, 151100918612288209338643024889160, 1354217120536797195675961944817053840

Offset: 0

R. H. Hardin, May 10 2010

nonn

Mingjia Yang and Doron Zeilberger, Increasing Consecutive Patterns in Words, arXiv:1805.06077 [math.CO], 2018.
Mingjia Yang, An experimental walk in patterns, partitions, and words, Ph. D. Dissertation, Rutgers University (2020).

Cf. A014606.

Cf. A177596, A177615.

a(10) from Alois P. Heinz, Nov 01 2013

a(11)-a(13) from Alois P. Heinz, Aug 08 2018

cp's OEIS Frontend

A177596 Number of permutations of 3 copies of 1..n avoiding adjacent step pattern up, up.

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