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A038388 as a simple table

na(n)
11
22
33
44
55
66
77
84
93
1010
1111
1212
1313
1414
1515
168
1717
186
1919
2020
2121
2222
2323
2412
255
2626
279
2828
2929
3030
3131
328
3333
3434
3535
3612
3737
3838
3939
4020
4141
4242
4343
4444
4515
4646
4747
4824
497
5010
5151
5252
5353
5418
5555
5628
5757
5858
5959
6060
6161
6262
6321
6416
6565
6666
6767
6868
6969
7070
7171
7212
7373
7474
7515

[1,2,3,4,5,6,7,4,3,10,11,12,13,14,15,8,17,6,19,20,
 21,22,23,12,5,26,9,28,29,30,31,8,33,34,35,12,37,
 38,39,20,41,42,43,44,15,46,47,24,7,10,51,52,53,18,
 55,28,57,58,59,60,61,62,21,16,65,66,67,68,69,70,
 71,12,73,74,15]