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Matrix square of triangle A091613.
3

%I #3 Mar 30 2012 17:37:13

%S 1,2,1,6,0,1,11,6,0,1,26,12,4,0,1,61,26,10,4,0,1,132,70,26,8,4,0,1,

%T 290,174,62,24,8,4,0,1,638,404,156,60,22,8,4,0,1,1390,946,385,146,58,

%U 22,8,4,0,1,3012,2192,921,362,144,56,22,8,4,0,1,6496,5008,2177,876,350,142

%N Matrix square of triangle A091613.

%e 1; 2,1; 6,0,1; 11,6,0,1; 26,12,4,0,1; ...

%Y Row sums: A091621. Column 1: A091622.

%K nonn,tabl

%O 1,2

%A _Christian G. Bower_, Jan 23 2004