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A209759 as a triangular array

1
12
155
151613
15194834
15196814189
151971233409233
1519712627721175610
151971265948249233491597
1519712659863354787994824181
1519712659893641

A209759 as a square array

11111111111
2555555555
51619191919191919
1348687171717171
34141233262265265265
89409772948986989
2331175249233543641
61033497879
15979482
4181
11111111111
2555555555
51619191919191919
1348687171717171
34141233262265265265
89409772948986989
2331175249233543641
61033497879
15979482
4181