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A173890 as a triangular array

1
11
121
172721
1840302408401
128801209600120960028801
17560108864001270080001088640075601
116800635040002540160000254016000063504000168001
1332642794176002933884800010059033600029338848000279417600332641

A173890 as a square array

111111111
1272840288075601680033264
1723024012096001088640063504000279417600
18401209600127008000254016000029338848000
12880108864002540160000100590336000
175606350400029338848000
116800279417600
133264
1
111111111
1272840288075601680033264
1723024012096001088640063504000279417600
18401209600127008000254016000029338848000
12880108864002540160000100590336000
175606350400029338848000
116800279417600
133264
1