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A250432 as a triangular array

16
3636
8110881
144324324144
2567201296720256
4001600360036001600400
62530001000012000100003000625
9005625225004000040000225005625900
1296945050625105000160000105000506259450

A250432 as a square array

1636811442564006259001296
361083247201600300056259450
8132412963600100002250050625
14472036001200040000105000
25616001000040000160000
400300022500105000
625562550625
9009450
1636811442564006259001296
361083247201600300056259450
8132412963600100002250050625
14472036001200040000105000
25616001000040000160000
400300022500105000
625562550625
9009450