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A353098 as a simple table

na(n)
16
247
3333
42334
516340
6114381
7800667
85604668
939232674
10274628715
111922401001
1213456807002
1394197649008
14659383543049
154615684801335
1632309793609336
17226168555265342
181583179886857383
1911082259208001669
2077575814456011670
21543030701192081676

[6,47,333,2334,16340,114381,800667,5604668,
 39232674,274628715,1922401001,13456807002,
 94197649008,659383543049,4615684801335,
 32309793609336,226168555265342,1583179886857383,
 11082259208001669,77575814456011670,
 543030701192081676]