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A197457 as a simple table

na(n)
11
21
31
42
57
62
73
810
910
103
115
1223
1331
1423
155
168
1757
1884
1984
2057
218
2213
23122
24290
25583
26290
27122
2813
2921
30275
31923
322233
332233
34923
35275
3621
3734
38623
392887
4010758
4115825
4210758
432887
44623
4534
4655
471394
489216
4953337
50104318
51104318
5253337
539216
541394
5555
5689
573133

[1,1,1,2,7,2,3,10,10,3,5,23,31,23,5,8,57,84,84,57,
 8,13,122,290,583,290,122,13,21,275,923,2233,2233,
 923,275,21,34,623,2887,10758,15825,10758,2887,623,
 34,55,1394,9216,53337,104318,104318,53337,9216,
 1394,55,89,3133]