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A263296 as a triangular array

1
11
211
5321
1310821
4452411531
1913513521212531
12293714482021593784141
1358863638113256687151430610956541
2885971912203460203939523781141575104829344110051

A263296 as a square array

11251344191122913588288597
11310523513714636381912203
1284135248201132564602039
12151212159687153952378
1325378143061141575
13411095104829
14653441
14100
15
1

A263296 as an upper right triangle

11251344191122913588288597
11310523513714636381912203
1284135248201132564602039
12151212159687153952378
1325378143061141575
13411095104829
14653441
14100
15
1

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Last modified February 24 18:32 EST 2021. Contains 341577 sequences. (Running on oeis4.)