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A228260 as a triangular array

9
1731
2514363
33319621127
4156525112059255
498816419139336305511
571267129475331558911191711023
65172322727141989315601242461580252047
7322493647131042511618551688101989527

A228260 as a square array

91725334149576573
31143319565881126717232249
6362125116419129472272736471
12720591393353315141989310425
2556305589113156011161855
511191712424611688101
102358025989527
2047

A228260 as an upper right triangle

91725334149576573
31143319565881126717232249
6362125116419129472272736471
12720591393353315141989310425
2556305589113156011161855
511191712424611688101
102358025989527
2047

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Last modified April 17 13:58 EDT 2024. Contains 371764 sequences. (Running on oeis4.)