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A173889 as a triangular array

1
11
121
112121
11207201201
136021600216003601
184015120015120001512008401
11680705600211680002116800070560016801
130242540160177811200533433600177811200254016030241

A173889 as a square array

111111111
121212036084016803024
112720216001512007056002540160
112021600151200021168000177811200
136015120021168000533433600
1840705600177811200
116802540160
13024
1
111111111
121212036084016803024
112720216001512007056002540160
112021600151200021168000177811200
136015120021168000533433600
1840705600177811200
116802540160
13024
1