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A328921 as a triangular array

1
21
2081
592240362
338881420824001926
3134208135552024864024000120024
4239744001880524803659904039782402520008640120
7872279552035613849600724002048085397760062657280282240070560720
1919365281792088169530982401851920179200

A328921 as a square array

12205923388831342084239744007872279552019193652817920
18240142081355520188052480356138496008816953098240
13624002486403659904072400204801851920179200
2192240003978240853977600
6120025200062657280
2486402822400
12070560
720
12205923388831342084239744007872279552019193652817920
18240142081355520188052480356138496008816953098240
13624002486403659904072400204801851920179200
2192240003978240853977600
6120025200062657280
2486402822400
12070560
720