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A221438 as a triangular array

1
22
626
24121224
12021612216120
72052805765765280720
504019080066240576662401908005040
4032093441601532160016128016128015321600934416040320
3628805980665605411750400283046400

A221438 as a square array

12624120720504040320362880
221221652801908009344160598066560
6121257666240153216005411750400
24216576576161280283046400
120528066240161280
72019080015321600
50409344160
40320
12624120720504040320362880
221221652801908009344160598066560
6121257666240153216005411750400
24216576576161280283046400
120528066240161280
72019080015321600
50409344160
40320