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A167556 as a triangular array

1
12
262
62448
2412004824
120720-12038472144
7205040-16803696-4321296720
504040320-2016040320-158401728028805760
40320362880-241920483840-311040288000-460806912040320

A167556 as a square array

112624120720504040320
2624120720504040320362880
240-120-1680-20160-241920
848384369640320483840
2472-432-15840-311040
144129617280288000
7202880-46080
576069120
40320
112624120720504040320
2624120720504040320362880
240-120-1680-20160-241920
848384369640320483840
2472-432-15840-311040
144129617280288000
7202880-46080
576069120
40320