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A128596 as a triangular array

1
11
121
1771
12446241
186297297861
13151919321019193151
111701239932510325101239911701
14389802413181714846363181718024143891
116588520399305410067308326730832

A128596 as a square array

1111111111
12724863151170438916588
174629719191239980241520399
1242973210325103181713054100
1861919325104846366730832
1315123993181716730832
1117080241
14389
1
1111111111
12724863151170438916588
174629719191239980241520399
1242973210325103181713054100
1861919325104846366730832
1315123993181716730832
1117080241
14389
1