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A278588 as a triangular array

9
18198
27542997
3639610839996
4590135180499995
54594599435642705999994
63126189252315

A278588 as a square array

9182736455463
1985439690594126
29971081355994189
399961803564252
499995270315
5999994

A278588 as an upper right triangle

9182736455463
1985439690594126
29971081355994189
399961803564252
499995270315
5999994

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)