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A137597 as a triangular array

1
21
551
152291
529961141
203471385135201
877238624161140260271
4140128671547091562835455351
211477368110221572590284416230742441

A137597 as a square array

1251552203877414021147
15229947123861286773681
1961385241615470102215
1141351140915672590
120260283528441
1274556230
135742
144
1
1251552203877414021147
15229947123861286773681
1961385241615470102215
1141351140915672590
120260283528441
1274556230
135742
144
1