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A047666 as a simple table

na(n)
11
22
32
43
55
63
74
810
910
104
115
1217
1325
1417
155
166
1726
1852
1952
2026
216
227
2337
2495
25129
2695
2737
287
298
3050
31158
32276
33276
34158
3550
368
379
3865
39245
40529
41681
42529
43245
4465
459
4610
4782
48360
49932
501486
511486
52932
53360
5482
5510
5611
57101
58507
591537
602947
613653

[1,2,2,3,5,3,4,10,10,4,5,17,25,17,5,6,26,52,52,26,
 6,7,37,95,129,95,37,7,8,50,158,276,276,158,50,8,9,
 65,245,529,681,529,245,65,9,10,82,360,932,1486,
 1486,932,360,82,10,11,101,507,1537,2947,3653]