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A049513 as a triangular array

1
11
121
1351
149131
151325331
16173765811
172149971611931
1825611292413854491
19297316132157789710251
11033851934017691345204923051
1113797225481

A049513 as a square array

111111111111
1234567891011
15913172125293337
11325374961738597
1336597129161193225
181161241321401481
1193385577769
14498971345
110252049
12305
1
111111111111
1234567891011
15913172125293337
11325374961738597
1336597129161193225
181161241321401481
1193385577769
14498971345
110252049
12305
1