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A237412 as a triangular array

81
322322
127816321278
5228823682365228
2145644186531674418621456
8716423864037380437380423864087164
35400812604862671962360493026719621260486354008
144106066274501840136435476776

A237412 as a square array

813221278522821456871643540081441060
322163282364418623864012604866627450
1278823653167373804267196218401364
522844186373804360493035476776
214562386402671962
871641260486
354008
813221278522821456871643540081441060
322163282364418623864012604866627450
1278823653167373804267196218401364
522844186373804360493035476776
214562386402671962
871641260486
354008