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A176920 as a simple table

na(n)
11
21
31
41
51
61
742
81
99
101
1122
121
1378
1442
151
161
17272
189
19342
201
2142
2222
23506
241
251
2678
2781
2842
29812
301
31465
321
3322
34272
3542
369
37111
38342
3978
401
41205
4242
43903
4422
459
46506
472162
481
492058
501
51272
5278
53689
5481
5522
5642
57342
58812
593422
601
613660
62465
63126
641
6578
6622
672211
68272
69506

[1,1,1,1,1,1,42,1,9,1,22,1,78,42,1,1,272,9,342,1,
 42,22,506,1,1,78,81,42,812,1,465,1,22,272,42,9,
 111,342,78,1,205,42,903,22,9,506,2162,1,2058,1,
 272,78,689,81,22,42,342,812,3422,1,3660,465,126,1,
 78,22,2211,272,506]