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A264299 as a triangular array

1
20
591
108200
162489561
291773321921690
612881952167214134411
117944104492508014881435212580
212420951825146688297721943202478135201
401994427138513469443890569

A264299 as a square array

12510162961117212401
0982417728894442099944
1208933219521044951825271385
0561921672250801466881346944
11691413148812977213890569
0441435294320
1125824781
03520
1
12510162961117212401
0982417728894442099944
1208933219521044951825271385
0561921672250801466881346944
11691413148812977213890569
0441435294320
1125824781
03520
1