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A093474 as a simple table

na(n)
00
11
21
33
41
55
63
77
81
99
105
1113
123
1311
147
1515
161
1717
189
1925
205
2121
2213
2329
243
2519
2611
2727
287

[0,1,1,3,1,5,3,7,1,9,5,13,3,11,7,15,1,17,9,25,5,
 21,13,29,3,19,11,27,7]