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A259074 as a triangular array

1
11
121
1331
24641
37101051
41218201561
5193339352171
728587675562881
104296144156132843691
146415626031529421712045101
199725345561063051833816555111

A259074 as a square array

111123457101419
12347121928426497
1361018335896156253
1410203976144260455
15153575156315610
162156132294630
172884217518
1836120338
1945165
11055
111
1
111123457101419
12347121928426497
1361018335896156253
1410203976144260455
15153575156315610
162156132294630
172884217518
1836120338
1945165
11055
111
1