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A247497 as a triangular array

1
11
232
410126
933626024
21111300450360120
513781412300037202520720
12713036552188163276034440201605040
32345393018611382026426438808035280018144040320

A247497 as a square array

112492151127323
13103311137813034539
212623001412655230186
660450300018816113820
24360372032760264264
120252034440388080
72020160352800
5040181440
40320
112492151127323
13103311137813034539
212623001412655230186
660450300018816113820
24360372032760264264
120252034440388080
72020160352800
5040181440
40320