%I
%S 1,1,1,2,11,37,126,422,1422,4853,16786,58775,208000,742887,2674426,
%T 9694830,35357654,129644773,477638682,1767263171,6564120400,
%U 24466266999,91482563618,343059613627,1289904147300,4861946401427,18367353072126,69533550915977,263747951750332,1002242216651339
%N A246604 (Catalan(n)n) with initial terms 1,0,0,2,10 changed to 1,1,1,2,11.
%C Related to number of mesh patterns of length 2 that avoid the pattern 321.
%H Murray Tannock, <a href="https://skemman.is/bitstream/1946/25589/1/msctannock2016.pdf">Equivalence classes of mesh patterns with a dominating pattern</a>, MSc Thesis, Reykjavik Univ., May 2016. See Appendix B2.
%Y A variant of A246604.
%Y All of A000108, A001453, A246604, A273526, A120304, A289615, A289616, A289652, A289653, A289654 are very similar sequences.
%K nonn
%O 1,4
%A _N. J. A. Sloane_, Jul 09 2017
