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A174675 as a triangular array

1
11
1601
16566561
158321646458321
149496302486302486494961
141941249333321017194449333324194121
13593036764255062804985262804985267642550635930361
1311676001157982288

A174675 as a square array

111111111
160656583249496419412359303631167600
1656164643024864933332764255061157982288
1583230248610171944280498526
1494964933332280498526
141941276425506
13593036
1
111111111
160656583249496419412359303631167600
1656164643024864933332764255061157982288
1583230248610171944280498526
1494964933332280498526
141941276425506
13593036
1