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A126186 as a triangular array

3
19
3627
10192781
366690108243
137245325378405729
54395412421416148514582187
22193848494455635760558951036561
92851594220286226202323522410204121749619683
395876744285194

A126186 as a square array

31310361375432219928539587
96196624595438481594267442
272790325124249442028685194
811083781416556322620
2434051485576023235
7291458558922410
2187510320412
656117496
19683
31310361375432219928539587
96196624595438481594267442
272790325124249442028685194
811083781416556322620
2434051485576023235
7291458558922410
2187510320412
656117496
19683