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A108142 as a simple table

na(n)
11
21
31
41
51
61
73
827
9151
10759
113679
1217599
1383767
14397943
151889059
168964891
1742539855
18201849743
19957752095
204544385823
2121562354767
22102309686479
23485441784803
242303337053819
2510928934112423
2651855892302151

[1,1,1,1,1,1,3,27,151,759,3679,17599,83767,397943,
 1889059,8964891,42539855,201849743,957752095,
 4544385823,21562354767,102309686479,485441784803,
 2303337053819,10928934112423,51855892302151]