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A146723 as a simple table

na(n)
11
21
31
41
59
613
735
863
91723
104113
11139447
12424285
1317547037
1465696265
158305366965
1639548747551
178986486324279
1853849970214263
1923104370746283843
20173734005704827315

[1,1,1,1,9,13,35,63,1723,4113,139447,424285,
 17547037,65696265,8305366965,39548747551,
 8986486324279,53849970214263,23104370746283843,
 173734005704827315]