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A258097 as a simple table

na(n)
11
23
39
426
568
6198
7536
81660
94769
1015945
1146240
12165732
13488268
141848866
155852344

[1,3,9,26,68,198,536,1660,4769,15945,46240,165732,
 488268,1848866,5852344]