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A253749 as a triangular array

81
450450
199827231998
780310182166257803
2810729737774147595928107
959407059024725238297330570795940
315576148134583698114317416367171087364315576
1011357298760120442223519285195288

A253749 as a square array

814501998780328107959403155761011357
4502723101822973770590148134298760
199816625774142472525836981204422
78037595938297311431742351928
2810730570716367175195288
959401087364
315576

A253749 as an upper right triangle

814501998780328107959403155761011357
4502723101822973770590148134298760
199816625774142472525836981204422
78037595938297311431742351928
2810730570716367175195288
959401087364
315576

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Last modified July 25 03:53 EDT 2021. Contains 346283 sequences. (Running on oeis4.)