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A239306 as a triangular array

1
12
135
1236
153611
1341079
13485109
14507101713
1340718151116
13457149111319
134560109141716
134589101823171527
13406269151411

A239306 as a square array

1111111111111
232533433333
53344544444
66108005550
1175777686
9101018140926
91715910109
13111191815
1613142314
19171711
1615
27
1111111111111
232533433333
53344544444
66108005550
1175777686
9101018140926
91715910109
13111191815
1613142314
19171711
1615
27