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A257620 as a triangular array

1
33
9369
2729729727
8121065346210681
24313851733867338613851243
72987480868239176126486823987480729
21875401899388791341587533415875393887915401892187
656132936229584308857890327410247625905789032749584308832936226561

A257620 as a square array

139278124372921876561
336297210613851874805401893293622
9297534673386868239938879195843088
27210673386176126434158753578903274
8113851868239341587531024762590
243874809388791578903274
72954018995843088
21873293622
6561

A257620 as an upper right triangle

139278124372921876561
336297210613851874805401893293622
9297534673386868239938879195843088
27210673386176126434158753578903274
8113851868239341587531024762590
243874809388791578903274
72954018995843088
21873293622
6561

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Last modified March 31 03:48 EDT 2020. Contains 333136 sequences. (Running on oeis4.)