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A266904 as a triangular array

1
10
101
1012
105139
101110233144
102412333155017651265
10771777343203441933660913863771854
10222295717697988671291358182432104893332614841028014833
107005288444

A266904 as a square array

1111111111
000000000
115112477222700
2131021233177732957175288444
9331315504320344697988671
44176511933660929135818243
265138637721048933326
1854148410280
14833
1111111111
000000000
115112477222700
2131021233177732957175288444
9331315504320344697988671
44176511933660929135818243
265138637721048933326
1854148410280
14833