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A259841 as a triangular array

1
31
1552
11737177
136741818910040
23329702730581688939357
570933171428721943927424050134294820
1974006859483802449366129376880757651754828351096030

A259841 as a square array

131511713672332957093319740068
153741870271714285948380
2171893058721942449366
71001688392741293768
4093924050807576
35713429517548
4820283510
96030

A259841 as an upper right triangle

131511713672332957093319740068
153741870271714285948380
2171893058721942449366
71001688392741293768
4093924050807576
35713429517548
4820283510
96030

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Last modified April 5 09:06 EDT 2020. Contains 333238 sequences. (Running on oeis4.)