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A338709 as a simple table

na(n)
16
2129
31209
48856
557522
6348945
72031525
811531712
964438638
10356590161
111961459841
1210749416568
1358777575354
14320956083777
151751147966157
169549634751424
1752062358139670
18283782668909793
191546691543230473
208429380058864280
2145938035123043586
22250345837703068209

[6,129,1209,8856,57522,348945,2031525,11531712,
 64438638,356590161,1961459841,10749416568,
 58777575354,320956083777,1751147966157,
 9549634751424,52062358139670,283782668909793,
 1546691543230473,8429380058864280,
 45938035123043586,250345837703068209]