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A235406 as a triangular array

81
450450
250059162500
11100879028790211100
49284924132413341792413249284
19247497307231297002471297002479730723192474
75168980383489405327532212449201480405327532280383489751689
2707641

A235406 as a square array

81450250011100492841924747516892707641
450591687902924132973072380383489
25008790241334171297002474053275322
1110092413212970024712449201480
4928497307234053275322
19247480383489
751689

A235406 as an upper right triangle

81450250011100492841924747516892707641
450591687902924132973072380383489
25008790241334171297002474053275322
1110092413212970024712449201480
4928497307234053275322
19247480383489
751689

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Last modified October 21 11:25 EDT 2019. Contains 328295 sequences. (Running on oeis4.)