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A285266 as a triangular array

1
31
941
271451
81501961
243178752471
7296342951002981
2187225811614181253491
656180424569174854315039101
1968328642179817310236366817544111

A285266 as a square array

13927812437292187656119683
1414501786342258804228642
1519752951161456917981
162410041817487310
17291255432363
1834150668
1939175
11044
111
1
13927812437292187656119683
1414501786342258804228642
1519752951161456917981
162410041817487310
17291255432363
1834150668
1939175
11044
111
1