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A268904 as a triangular array

0
30
12360
361682400
96696158413440
240266497201296069120
57697205493611858498496337920
134434344299088100418413471927153921597440
30721185841585800825091217194680146441525038848

A268904 as a square array

0312369624057613443072
0361686962664972034344118584
024015849720549362990881585800
013441296011858410041848250912
0691298496134719217194680
03379271539214644152
01597445038848
0
0312369624057613443072
0361686962664972034344118584
024015849720549362990881585800
013441296011858410041848250912
0691298496134719217194680
03379271539214644152
01597445038848
0