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A300498 as a triangular array

1
22
474
818188
1650525016
3213814314313832
6438341249941238364
128106312251513151312251063128
2562951369946865837468636992951256
5128193112431482219412194121482211243

A300498 as a square array

1248163264128256512
271850138383106329518193
418521434121225369911243
8501434991513468614822
161384121513583719412
323831225468619412
641063369914822
128295111243
256
1248163264128256512
271850138383106329518193
418521434121225369911243
8501434991513468614822
161384121513583719412
323831225468619412
641063369914822
128295111243
256