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A091186 as a triangular array

1
11
121
1431
17841
112181351
12038351961
1337686592671
154147197164913481
1882774304202811324391
1143512904101479244718353101
12329321846233820871371

A091186 as a square array

111111111111
12471220335488143232
138183876147277512932
141335861974309041846
15195916442010142338
1626912817922087
17341324471371
1843183
1953
110
1
111111111111
12471220335488143232
138183876147277512932
141335861974309041846
15195916442010142338
1626912817922087
17341324471371
1843183
1953
110
1