login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A289589 Related to number of mesh patterns of length 2 that avoid the pattern 321. 0
1, 1, 1, 2, 5, 15, 48, 159, 538, 1850, 6446 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..11.

Shishuo Fu, Guo-Niu Han, and Zhicong Lin, k-arrangements, statistics and patterns, arXiv:2005.06354 [math.CO], 2020. Mentions this sequence.

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

CROSSREFS

Sequence in context: A149926 A321467 A301994 * A071739 A268407 A261003

Adjacent sequences:  A289586 A289587 A289588 * A289590 A289591 A289592

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jul 08 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 17 15:20 EST 2022. Contains 350402 sequences. (Running on oeis4.)