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A209115 as a triangular array

1
12
131
1455
1511225
1619556315
172912026123825
1841221741137386568
19553621683503273773417139
11071559332514037352534125613607354
11189816593532802121117255821

A209115 as a square array

11111111111
234567891011
1511192941557189
52255120221362559816
563261741168333255935
15238137350321403732802
25865737735253121117
68341741256255821
13913607
354

A209115 as an upper right triangle

11111111111
234567891011
1511192941557189
52255120221362559816
563261741168333255935
15238137350321403732802
25865737735253121117
68341741256255821
13913607
354

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Last modified December 4 15:36 EST 2021. Contains 349526 sequences. (Running on oeis4.)