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A180208 as a simple table

na(n)
11
22
34
48
516
632
766
8148
9376
101138
113834
1214832
1360584
14263480
151159034
165218514

[1,2,4,8,16,32,66,148,376,1138,3834,14832,60584,
 263480,1159034,5218514]