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A293473 as a triangular array

1
12
464
1230248
521441568016
240760102068024032
1188444067205640264067264
68042671247040456402688094081792128
38960175392338016376320261520115584313604608256

A293473 as a square array

11412522401188680438960
2630144760444026712175392
4241561020672047040338016
880680564045640376320
16240264026880261520
326729408115584
64179231360
1284608
256
11412522401188680438960
2630144760444026712175392
4241561020672047040338016
880680564045640376320
16240264026880261520
326729408115584
64179231360
1284608
256