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A131299 as a triangular array

1
11
111
1141
11741
1110771
1113101671
1116132816101
111916432828101
11221961435828131
11252282611035843131
11282510682166

A131299 as a square array

111111111111
11111111111
14710131619222528
147101316192225
171628436182106
171628436182
1102858103166
1102858
11343
113
1
111111111111
11111111111
14710131619222528
147101316192225
171628436182106
171628436182
1102858103166
1102858
11343
113
1