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A073403 as a triangular array

1
1236
1208881536
1152151686259280448
10944222336160070448130565068800
103680299289632811264169917696413351424375598080
981504381127685879761924592982528

A073403 as a square array

112120115210944103680981504
3688815168222336299289638112768
153662592160070432811264587976192
8044848130561699176964592982528
5068800413351424
375598080
112120115210944103680981504
3688815168222336299289638112768
153662592160070432811264587976192
8044848130561699176964592982528
5068800413351424
375598080