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A238287 as a triangular array

4
1616
5020450
14418441844144
422139484208413948422
12681058627373667373661058621268
38238504201292627127913368129262718504203823
11472695399324592080010585830001058583000245920800

A238287 as a square array

416501444221268382311472
162041844139481058628504206953993
5018444208473736612926271245920800
14413948737366279133681058583000
422105862129262711058583000
1268850420245920800
3823
416501444221268382311472
162041844139481058628504206953993
5018444208473736612926271245920800
14413948737366279133681058583000
422105862129262711058583000
1268850420245920800
3823