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A289610
Related to number of mesh patterns of length 2 that avoid the pattern 321.
0
1, 1, 1, 2, 8, 31, 112, 392, 1360, 4727, 16532
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: A054137 A343414 A062456 * A077838 A216318 A018916
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jul 09 2017
STATUS
approved