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A161980 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1155
1212
1391
1414
1515
1616
1717
1818
1957
2020
2121
22110
23253
2424
25275
26182
2727
2828
2987
3030
3131
3232
3333
3434
35455
3636
37333
38114
39741
4040
411189
4242
43215
44220
4545
46506
47893
4848
49931
50550
5151
52364
53689
5454
55495
5656
57627
58174
59885
6060
611403
6262
6363
6464

[1,2,3,4,5,6,7,8,9,10,55,12,91,14,15,16,17,18,57,
 20,21,110,253,24,275,182,27,28,87,30,31,32,33,34,
 455,36,333,114,741,40,1189,42,215,220,45,506,893,
 48,931,550,51,364,689,54,495,56,627,174,885,60,
 1403,62,63,64]