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A241330 as a simple table

na(n)
15
285
32344
468935
52034543
660066019
71773370241
852356524981
91545760698649
1045636645554004
111347364712395962
1239779252976746762
131174432544392935470
1434673647645893709738
151023695951556996550068
1630223338828856554979455

[5,85,2344,68935,2034543,60066019,1773370241,
 52356524981,1545760698649,45636645554004,
 1347364712395962,39779252976746762,
 1174432544392935470,34673647645893709738,
 1023695951556996550068,30223338828856554979455]