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%I #15 Aug 19 2017 09:56:51
%S 1,1,2,3,2,1,7,11,10,7,3,1,28,46,48,39,24,12,4,1,122,207,233,208,151,
%T 92,45,18,5,1,562,977,1154,1099,880,606,356,179,74,25,6,1,2693,4769,
%U 5826,5815,4975,3726,2451,1419,714,310,112,33,7,1,13288,23872,29904,30926,27768,22112,15736,10039,5720,2898,1288,496,160,42,8,1
%N Irregular triangle read by rows: T(n,m) = number of lattice paths of type B^Q terminating at point (n, m).
%H Veronika Irvine, <a href="http://hdl.handle.net/1828/7495">Lace Tessellations: A mathematical model for bobbin lace and an exhaustive combinatorial search for patterns</a>, PhD Dissertation, University of Victoria, 2016.
%e Triangle begins:
%e 1,1,
%e 2,3,2,1,
%e 7,11,10,7,3,1,
%e 28,46,48,39,24,12,4,1,
%e 122,207,233,208,151,92,45,18,5,1,
%e 562,977,1154,1099,880,606,356,179,74,25,6,1,
%e 2693,4769,5826,5815,4975,3726,2451,1419,714,310,112,33,7,1,
%e ...
%Y The first two columns are A291091 and A291090.
%K nonn,tabf
%O 0,3
%A _N. J. A. Sloane_, Aug 19 2017
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