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A097905 as a triangular array

1
21
632
24383
12015401524
7204580451445
5040315560315100835720
4032031544803158064355760315
36288028354480283572576355184028354480
3628800141754480014175145152175

A097905 as a square array

126241207205040403203628803628800
1331545315315283514175
2840805604480448044800
31545315315283514175
241441008806472576145152
5353535175
720576051840
3152835
4480
126241207205040403203628803628800
1331545315315283514175
2840805604480448044800
31545315315283514175
241441008806472576145152
5353535175
720576051840
3152835
4480