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A370415 as a triangular array

1
41
4821
641641
128016811
3072256322441
86016512256161621
49152122881024256641641
29491206144307238412881211
13107203276804096102451264016441
11534336131072655362048204825612881621

A370415 as a square array

1448641280307286016491522949120131072011534336
121616256512122886144327680131072
1483225610243072409665536
11241625638410242048
1416641285122048
12168640256
141216128
1148
1416
12
1
1448641280307286016491522949120131072011534336
121616256512122886144327680131072
1483225610243072409665536
11241625638410242048
1416641285122048
12168640256
141216128
1148
1416
12
1