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A273891 as a triangular array

1
11
121
1463
16182412
1115613615060
11614761212001080360
128411261979051197088202520
144108410480464001058401293608064020160
17629794138825563682195214817601512000816480181440

A273891 as a square array

1111111111
12461116284476
16185614741110842979
32413661226191048041388
121501200790546400255636
60108011970105840821952
36088201293601481760
2520806401512000
20160816480
181440

A273891 as an upper right triangle

1111111111
12461116284476
16185614741110842979
32413661226191048041388
121501200790546400255636
60108011970105840821952
36088201293601481760
2520806401512000
20160816480
181440

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Last modified May 30 18:38 EDT 2020. Contains 334728 sequences. (Running on oeis4.)