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A149027 as a simple table

na(n)
01
11
23
39
439
5143
6645
72603
812089
951843
10244625
111085225
125172639
1323504709
14112876019
15521562001
162517993407
1711779732141
1857108894755
19269728321329
201311947665271
216242539439513
2230444460089423
23145731077374047
24712289602626021
253426187222066247
2616777120269058485
2781025572922970219

[1,1,3,9,39,143,645,2603,12089,51843,244625,
 1085225,5172639,23504709,112876019,521562001,
 2517993407,11779732141,57108894755,269728321329,
 1311947665271,6242539439513,30444460089423,
 145731077374047,712289602626021,3426187222066247,
 16777120269058485,81025572922970219]