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A055858 as a triangular array

1
12
496
27644836
256625500400320
312577766480540045003750
4665611764910084286436740886350454432
823543209715218350081605632140492812293121075648941192
1677721643046721

A055858 as a square array

1142725631254665682354316777216
29646257776117649209715243046721
64850064801008421835008
364005400864361605632
3204500740881404928
3750635041229312
544321075648
941192
1142725631254665682354316777216
29646257776117649209715243046721
64850064801008421835008
364005400864361605632
3204500740881404928
3750635041229312
544321075648
941192