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A197180 as a simple table

na(n)
11
21
31
42
55
62
73
810
910
103
114
1223
1341
1423
154
166
1758
18150
19150
2058
216
229
23144
24665
25969
26665
27144
289
2913
30363
312695
327172
337172
342695
35363
3613
3719
38917
3911424
4050864
4192206
4250864
4311424
44917
4519
4628
472321
4847528
49367813
501096217
511096217
52367813
5347528
542321
5528

[1,1,1,2,5,2,3,10,10,3,4,23,41,23,4,6,58,150,150,
 58,6,9,144,665,969,665,144,9,13,363,2695,7172,
 7172,2695,363,13,19,917,11424,50864,92206,50864,
 11424,917,19,28,2321,47528,367813,1096217,1096217,
 367813,47528,2321,28]