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A196327 as a simple table

na(n)
18
298
3573
43932
527396
6187787
71281418
88817196
960491511
10414940896
112848205472
1219543560677
13134109690174
14920301435092
156315269717345
1643336595756322
17297384592540278
182040711880508497
1914003768336412308

[8,98,573,3932,27396,187787,1281418,8817196,
 60491511,414940896,2848205472,19543560677,
 134109690174,920301435092,6315269717345,
 43336595756322,297384592540278,2040711880508497,
 14003768336412308]