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A146592 as a simple table

na(n)
11
21
31
41
51
61
73
823
947
1075
11181
12675
133025
1416403
1571953
16340893
171986607
1814754733
19121306057
201066980245
219641071515
22101852566849
231271193446821

[1,1,1,1,1,1,3,23,47,75,181,675,3025,16403,71953,
 340893,1986607,14754733,121306057,1066980245,
 9641071515,101852566849,1271193446821]