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A075639 as a triangular array

1
27
3513
11171923
2931374147
435359616771
7379838997101103
107109113127131137139149
151157163167173179181191193
197199211223227229233239241251
257263269271277

A075639 as a square array

12311294373107151197257
7517315379109157199263
1319375983113163211269
23416189127167223271
476797131173227277
71101137179229
103139181233
149191239
193241
251
12311294373107151197257
7517315379109157199263
1319375983113163211269
23416189127167223271
476797131173227277
71101137179229
103139181233
149191239
193241
251