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A338026 as a simple table

na(n)
18
29
310
412
515
620
728
842
966
10110
11190
12342
13630
141190
152278
164422
178646
1817030
1933670
2066822
21132900
22264758
23528034
241053990
252105077
264205820
278405840
2816803405
2933595212
3067173930
31134324628
32268616475
33537185908
341074305622
352148516546

[8,9,10,12,15,20,28,42,66,110,190,342,630,1190,
 2278,4422,8646,17030,33670,66822,132900,264758,
 528034,1053990,2105077,4205820,8405840,16803405,
 33595212,67173930,134324628,268616475,537185908,
 1074305622,2148516546]