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A264238 as a simple table

na(n)
18
221
389
4296
51105
63897
714128
850533
9181937
10652944
112346977
128429681
1330288280
14108807669
15390915337
161404388408
175045461169
1818126337449
1965121053504
20233954670533
21840509324641
223019625618976
2310848352515265

[8,21,89,296,1105,3897,14128,50533,181937,652944,
 2346977,8429681,30288280,108807669,390915337,
 1404388408,5045461169,18126337449,65121053504,
 233954670533,840509324641,3019625618976,
 10848352515265]