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A176293 as a triangular array

1
11
131
117171
15573551
11291931931291
12514014514012511
14337218658657214331
1687117714711569147111776871
1102517932305256125612305179310251
11459259334033889405138893403259314591

A176293 as a square array

11111111111
13175512925143368710251459
11773193401721117717932593
155193451865147123053403
1129401865156925613889
1251721147125614051
1433117723053889
168717933403
110252593
11459
1
11111111111
13175512925143368710251459
11773193401721117717932593
155193451865147123053403
1129401865156925613889
1251721147125614051
1433117723053889
168717933403
110252593
11459
1