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A202931 as a triangular array

3
66
125212
2435235224
4824448460244448
96175081946361946361750896
1921243404439916143940924439916124340192
38487294010023653210321474161032147416100236532872940384
7686112832

A202931 as a square array

3612244896192384768
6523522444175081243408729406112832
1235284601946364439916100236532
242444194636143940921032147416
481750844399161032147416
96124340100236532
192872940
384
3612244896192384768
6523522444175081243408729406112832
1235284601946364439916100236532
242444194636143940921032147416
481750844399161032147416
96124340100236532
192872940
384