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A228970 as a triangular array

5
77
851785
341341341341
455916591455
546154615461546154615461
43694369218452572184543694369
97099709138797099709138797099709

A228970 as a square array

5785341455546143699709
71734191546143699709
85341655461218451387
3419154612579709
4555461218459709
546143691387
43699709
9709
5785341455546143699709
71734191546143699709
85341655461218451387
3419154612579709
4555461218459709
546143691387
43699709
9709