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A198290 as a triangular array

2
1717
2722452272
46674133754133754667
80702725592127061202067255921280702
13974771294053218312751021489501275102148950129405321831397477
2420769223221459465602366880827870877

A198290 as a square array

217272466780702139747724207692
17245241337572559212129405321832322145946560
27241337570612020612751021489502366880827870877
4667725592121275102148950
8070212940532183
1397477
217272466780702139747724207692
17245241337572559212129405321832322145946560
27241337570612020612751021489502366880827870877
4667725592121275102148950
8070212940532183
1397477