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A081719 as a triangular array

1
01
011
0131
01551
0191471
0113322791
0120668044111
012812320316065131
014022246548628090151
01543779851305990448119171
01756301978320330511807672152191

A081719 as a square array

100000000000
11111111111
1359132028405475
15143266123222377630
1727802034659851978
194416048613053203
111652809903051
113904481807
115119672
117152
119
1
100000000000
11111111111
1359132028405475
15143266123222377630
1727802034659851978
194416048613053203
111652809903051
113904481807
115119672
117152
119
1