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A263484 as a triangular array

1
11
123
13713
14123271
151858177461
16259232711423447
17331355312109841129093
184218880034401536669692273343
195225211465226248921253166425812829325

A263484 as a square array

1111111111
123456789
37121825334252
13325892135188252
711773275318001146
4611142210934405226
344784111536624892
2909369692125316
273343642581
2829325
1111111111
123456789
37121825334252
13325892135188252
711773275318001146
4611142210934405226
344784111536624892
2909369692125316
273343642581
2829325