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A211315 as a triangular array

1
11
131
1551
17271
193391
1088801
12688621
148020841
163310103361
18232023281
11058811885101
1114802084111

A211315 as a square array

1111111111111
1357902468101
15238683251
1738803384
1988210288
106010010
1283212
143380
16288
1854
1101
11
1
1111111111111
1357902468101
15238683251
1738803384
1988210288
106010010
1283212
143380
16288
1854
1101
11
1