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A066411 as a simple table

na(n)
01
11
23
35
423
561
6143
7215
8995
92481
105785
1112907
1229279
1364963
14144289
15158049
16683311
171471123
183166531
196759177
2014404547
2130548713

[1,1,3,5,23,61,143,215,995,2481,5785,12907,29279,
 64963,144289,158049,683311,1471123,3166531,
 6759177,14404547,30548713]