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A077893 as a simple table

na(n)
01
11
21
31
43
53
65
75
811
911
1021
1121
1243
1343
1485
1585
16171
17171
18341
19341
20683
21683
221365
231365

[1,1,1,1,3,3,5,5,11,11,21,21,43,43,85,85,171,171,
 341,341,683,683,1365,1365]