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Related to number of mesh patterns of length 2 that avoid the pattern 321.
0

%I #10 Aug 24 2019 02:27:50

%S 3,10,34,116,397,1366,4734

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

%C Displayed terms match C(n+2)-2^n, where C(n) is the Catalan number A000108. - _David Callan_, Aug 24 2019

%H Murray Tannock, <a href="https://skemman.is/bitstream/1946/25589/1/msc-tannock-2016.pdf">Equivalence classes of mesh patterns with a dominating pattern</a>, MSc Thesis, Reykjavik Univ., May 2016. See Appendix B2.

%K nonn,more

%O 1,1

%A _N. J. A. Sloane_, Jul 09 2017