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A260583 as a simple table

na(n)
311
4595
514679
6253247
73564803
844226950
9505572550
105473391465
1157122380066
12581477852342
135819301681925
1457564437594318
15564911137682637
165513703983635512
1753616132982114742
18520057429817203110
195035740328012627416
2048704838658567681135

[11,595,14679,253247,3564803,44226950,505572550,
 5473391465,57122380066,581477852342,5819301681925,
 57564437594318,564911137682637,5513703983635512,
 53616132982114742,520057429817203110,
 5035740328012627416,48704838658567681135]