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A211805 as a triangular array

1
51
1651
361451
69321451
11761301451
18410357301451
2721629955301451
3852401569155301451
5253412301469155301451
6964653232201409155301451
900

A211805 as a square array

15163669117184272385525696900
15143261103162240341465
1514305799156230323
1514305591146220
1514305591140
1514305591
15143055
151430
1514
15
1
15163669117184272385525696900
15143261103162240341465
1514305799156230323
1514305591146220
1514305591140
1514305591
15143055
151430
1514
15
1