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A240508 as a simple table

na(n)
11
21
32
42
54
65
77
89
913
1017
1120
1223
1329
1438
1552
1673
17106
18157
19239
20369
21579
22916
231460
242338
253757
266051
279761
2815762
2925470
3041176
3166587
32107701
33174223
34281856
35456008
36737790
371193721
381931431
393125070
405056416

[1,1,2,2,4,5,7,9,13,17,20,23,29,38,52,73,106,157,
 239,369,579,916,1460,2338,3757,6051,9761,15762,
 25470,41176,66587,107701,174223,281856,456008,
 737790,1193721,1931431,3125070,5056416]