cp's OEIS Frontend

A291081 Irregular triangle read by rows: T(n,m) = number of lattice paths of type A^H terminating at point (n, m).

%I A291081 #14 Aug 20 2017 10:01:41
%S A291081 1,1,7,6,3,1,51,45,30,15,5,1,393,357,266,161,77,28,7,1,3139,2907,2304,
%T A291081 1554,882,414,156,45,9,1,25653,24068,19855,14355,9042,4917,2277,880,
%U A291081 275,66,11,1,212941,201643,171106,129844,87802,52624,27742,12727,5005,1651,442,91,13,1
%N A291081 Irregular triangle read by rows: T(n,m) = number of lattice paths of type A^H terminating at point (n, m).
%H A291081 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 A291081 Triangle begins:
%e A291081 1,1,
%e A291081 7,6,3,1,
%e A291081 51,45,30,15,5,1,
%e A291081 393,357,266,161,77,28,7,1,
%e A291081 3139,2907,2304,1554,882,414,156,45,9,1,
%e A291081 25653,24068,19855,14355,9042,4917,2277,880,275,66,11,1,
%e A291081 212941,201643,171106,129844,87802,52624,27742,12727,5005,1651,442,91,13,1,
%e A291081 ...
%Y A291081 First column is A273055.
%K A291081 nonn,tabf
%O A291081 0,3
%A A291081 _N. J. A. Sloane_, Aug 19 2017