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A083776 as a triangular array

2
35
357
35731
35713127
3571113149
35711131912653
3571113173192467
3571113171937342362509

A083776 as a square array

233333333
55555555
7777777
311311111111
12713131313
149191717
126533119
9246737
342362509
233333333
55555555
7777777
311311111111
12713131313
149191717
126533119
9246737
342362509