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A274488 as a triangular array

1
11
311
8311
228311
62228311
17862228311
51917862228311
153351917862228311
4578153351917862228311
138004578153351917862228311
41937138004578153351917862228311

A274488 as a square array

11382262178519153345781380041937
113822621785191533457813800
1138226217851915334578
113822621785191533
11382262178519
11382262178
11382262
113822
1138
113
11
1
11382262178519153345781380041937
113822621785191533457813800
1138226217851915334578
113822621785191533
11382262178519
11382262178
11382262
113822
1138
113
11
1