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A006723 as a simple table

na(n)
01
11
21
31
41
51
61
73
85
99
1017
1141
12137
13769
141925
157203
1634081
17227321
181737001
1914736001
2063232441
21702617001
228873580481
23122337693603
241705473647525
2522511386506929
26251582370867257
279254211194697641
28215321535159114017

[1,1,1,1,1,1,1,3,5,9,17,41,137,769,1925,7203,
 34081,227321,1737001,14736001,63232441,702617001,
 8873580481,122337693603,1705473647525,
 22511386506929,251582370867257,9254211194697641,
 215321535159114017]