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A289609
Related to number of mesh patterns of length 2 that avoid the pattern 321.
0
1, 1, 1, 2, 7, 29, 109, 388, 1355, 4721, 16525
OFFSET
1,4
LINKS
Murray Tannock, Equivalence classes of mesh patterns with a dominating pattern, MSc Thesis, Reykjavik Univ., May 2016. See Appendix B2.
CROSSREFS
Sequence in context: A155186 A203969 A199581 * A278815 A263367 A120757
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jul 09 2017
STATUS
approved