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A193936 5-nonnesting permutations. 3
1, 2, 6, 24, 120, 720, 5040, 40320, 362856, 3627385, 39864333, 477407104, 6183182389, 86033729930, 1278515941177, 20185987771091 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Also the number of 5-noncrossing permutations

REFERENCES

S. Corteel, Crossings and alignments of permutations, Adv. in Appl. Math.,38(2)(2007), 149-163.

LINKS

Table of n, a(n) for n=1..16.

Sophie Burrill, Sergi Elizalde, Marni Mishna and Lily Yen, A generating tree approach to k-nonnesting partitions and permutations, arXiv preprint arXiv:1108.5615, 2011

CROSSREFS

Cf. A193938, A193935, A193937.

Sequence in context: A152645 A054873 A324075 * A226440 A248841 A072132

Adjacent sequences:  A193933 A193934 A193935 * A193937 A193938 A193939

KEYWORD

nonn,more

AUTHOR

Lily Yen, Aug 09 2011

STATUS

approved

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Last modified June 19 04:44 EDT 2019. Contains 324217 sequences. (Running on oeis4.)