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A131107 as a triangular array

1
11
111
1341
12321
151627161
13251681161
171212525681641
144954125512729161
196434312963125409621872561
1527128240112961562520487292561
1111007294096

A131107 as a square array

111111111111
113253749511
143162512496427100
12271612554343128729
11681256125129624014096
1168151231251296
164729409615625
11621872048
1256729
1256
1
111111111111
113253749511
143162512496427100
12271612554343128729
11681256125129624014096
1168151231251296
164729409615625
11621872048
1256729
1256
1