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A266886 as a triangular array

1
10
101
1012
101229
10132252544
10158265214926100265
10711660275174333308977419162171854
104125073501305588167576448761523223042613319706952214833
1020956777970

A266886 as a square array

1111111111
000000000
11111741209
2223225826116602250735056777970
95255214975174331305588167
44261003308977457644876152
265191621732230426133
1854197069522
14833
1111111111
000000000
11111741209
2223225826116602250735056777970
95255214975174331305588167
44261003308977457644876152
265191621732230426133
1854197069522
14833