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A289616 A246604 (Catalan(n)-n) with initial terms 1,0,0,2,10 changed to 1,1,1,2,11. 7
1, 1, 1, 2, 11, 37, 126, 422, 1422, 4853, 16786, 58775, 208000, 742887, 2674426, 9694830, 35357654, 129644773, 477638682, 1767263171, 6564120400, 24466266999, 91482563618, 343059613627, 1289904147300, 4861946401427, 18367353072126, 69533550915977, 263747951750332, 1002242216651339 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Related to number of mesh patterns of length 2 that avoid the pattern 321.

LINKS

Table of n, a(n) for n=1..30.

Murray Tannock, Equivalence classes of mesh patterns with a dominating pattern, MSc Thesis, Reykjavik Univ., May 2016. See Appendix B2.

CROSSREFS

A variant of A246604.

All of A000108, A001453, A246604, A273526, A120304, A289615, A289616, A289652, A289653, A289654 are very similar sequences.

Sequence in context: A297406 A178138 A220888 * A038607 A079009 A097651

Adjacent sequences:  A289613 A289614 A289615 * A289617 A289618 A289619

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 09 2017

STATUS

approved

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Last modified February 21 21:41 EST 2018. Contains 299427 sequences. (Running on oeis4.)