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A238207 as a triangular array

0
12
358
4111726
614355380
72044107161242
92362134323485728
10297118840497114572186
1232892155661214291543736560
1328982696471700364487471312119682
1541116

A238207 as a square array

013467910121315
251114202329322841
817354462718998116
2653107134188215269
80161323404566647
24248597112141700
728145729153644
218643738747
656013121
19682
013467910121315
251114202329322841
817354462718998116
2653107134188215269
80161323404566647
24248597112141700
728145729153644
218643738747
656013121
19682