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A257852 as a triangular array

3
17
13911
5291715
5337452519
2111769613323
213149181101774127
85469277245133934931
8535977254053091651095735
341187711099815333731971256539

A257852 as a square array

31135532121385853341
7929371171494695971877
111745691812777251109
152561101245405981
193377133309533
234193165373
2749109197
3157125
3565
39

A257852 as an upper right triangle

31135532121385853341
7929371171494695971877
111745691812777251109
152561101245405981
193377133309533
234193165373
2749109197
3157125
3565
39

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)