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A293012 as a triangular array

1
11
111
1131
115131
11731731
119552415011
111185529226140511
1113121961612124781376331
1115163156113041827113098353943531
11172112353241012070011273567434224145965531

A293012 as a square array

11111111111
1111111111
1357911131517
113315585121163211
17324152996115612353
1501226161211304124101
140512478182711207001
1376333098351273567
13943534342241
14596553
1
11111111111
1111111111
1357911131517
113315585121163211
17324152996115612353
1501226161211304124101
140512478182711207001
1376333098351273567
13943534342241
14596553
1