A200403 Number of permutations avoiding the pattern 124-3.

1, 2, 6, 23, 107, 584, 3660, 25910, 204564, 1782520, 16995202, 176008542, 1967664910, 23618071616, 302957562470

Offset

1,2

Links

Table of n, a(n) for n=1..15.

Juan S. Auli, Sergi Elizalde, Consecutive patterns in inversion sequences II: avoiding patterns of relations, arXiv:1906.07365 [math.CO], 2019. See Table 1, p. 6.

Andrew M. Baxter and Lara K. Pudwell, Enumeration schemes for dashed patterns, arXiv preprint arXiv:1108.2642 [math.CO], 2011.

Crossrefs

Sequence in context: A000772 A200405 A336071 * A113226 A071075 A007555

Adjacent sequences: A200400 A200401 A200402 * A200404 A200405 A200406

Keyword

nonn,more

Author

N. J. A. Sloane, Nov 17 2011

Extensions

a(11)-a(15) from Lars Blomberg, Apr 16 2018

Status

approved