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A005009 as a simple table

na(n)
07
114
228
356
4112
5224
6448
7896
81792
93584
107168
1114336
1228672
1357344
14114688
15229376
16458752
17917504
181835008
193670016
207340032
2114680064
2229360128
2358720256
24117440512
25234881024
26469762048
27939524096
281879048192
293758096384

[7,14,28,56,112,224,448,896,1792,3584,7168,14336,
 28672,57344,114688,229376,458752,917504,1835008,
 3670016,7340032,14680064,29360128,58720256,
 117440512,234881024,469762048,939524096,
 1879048192,3758096384]