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A131966 as a triangular array

1
23
465
79810
1114131512
161918211720
22262428232725
2933313530343236
374240443943414538
46514954485350554752
5662596558646166576360
677370766975727868747177

A131966 as a square array

12471116222937465667
3691419263342516273
581318243140495970
101521283544546576
1217233039485869
20273443536475
253241506172
3645556678
38475768
526374
6071
77

A131966 as an upper right triangle

12471116222937465667
3691419263342516273
581318243140495970
101521283544546576
1217233039485869
20273443536475
253241506172
3645556678
38475768
526374
6071
77

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Last modified June 14 17:48 EDT 2021. Contains 345037 sequences. (Running on oeis4.)