A193937 6-nonnesting permutations.

1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 3628800, 39916680, 478991641, 6226516930, 87157924751, 1306945300264

Offset: 1

Author

Lily Yen, Aug 09 2011

Keywords

• nonn
• more

Comments

Also the number of 6-noncrossing permutations.

Links

• Sophie Burrill, Sergi Elizalde, Marni Mishna and Lily Yen, A generating tree approach to k-nonnesting partitions and permutations, arXiv preprint arXiv:1108.5615 [math.CO], 2011-2014.
• S. Corteel, Crossings and alignments of permutations, Adv. Appl. Math 38 (2007) 149-163.

Crossrefs

Cf. A193938, A193935, A193936.