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A188409 as a simple table

na(n)
01
11
29
3215
413825
51865715
6472211360
7205617134345
8144413237202513
9155491132440121969
10246331815235550280739
11555051611796729847585857
121728979263188082473586904451
137267279122553798970928760164349
1440366145202716102133415620482175732
15290962702320861139000003963988839815695

[1,1,9,215,13825,1865715,472211360,205617134345,
 144413237202513,155491132440121969,
 246331815235550280739,555051611796729847585857,
 1728979263188082473586904451,
 7267279122553798970928760164349,
 40366145202716102133415620482175732,
 290962702320861139000003963988839815695]