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A227338 as a triangular array

1
41
1281
4440121
17217684161
772748468144201
330832482332984220241
14924142801106857561788312281
64956637685147230760121082944420321
29425228529623783215591272948227324516

A227338 as a square array

14124417277233081492464956294252
184017674832481428063768285296
1128446823321106851472237832
116144984575630760155912
12022017881210872948
124312294422732
1284204516
132
1
14124417277233081492464956294252
184017674832481428063768285296
1128446823321106851472237832
116144984575630760155912
12022017881210872948
124312294422732
1284204516
132
1