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A147034 as a simple table

na(n)
11
21
31
41
51
65
725
885
9499
102253
119751
12103141
131030207
1412930523
15188986765
163964919203
1779856104275
182515127447393

[1,1,1,1,1,5,25,85,499,2253,9751,103141,1030207,
 12930523,188986765,3964919203,79856104275,
 2515127447393]