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A049887 as a simple table

na(n)
11
21
31
42
53
67
713
821
928
1076
11151
12297
13580
141105
151989
163170
174275
1811719
1923437
2046869
2193724
22187393
23374565
24748322
251494579
262980609
275926068
2811711612
2922862295
3043492303
3178253603
32124726515
33168218818
34461164150

[1,1,1,2,3,7,13,21,28,76,151,297,580,1105,1989,
 3170,4275,11719,23437,46869,93724,187393,374565,
 748322,1494579,2980609,5926068,11711612,22862295,
 43492303,78253603,124726515,168218818,461164150]