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A279513 as a simple table

na(n)
11
22
33
44
55
66
77
86
96
1010
1111
1212
1313
1414
1515
168
1717
1812
1919
2020
2121
2222
2323
2418
2510
2626
279
2828
2929
3030
3131
3210
3333
3434
3535
3624
3737
3838
3939
4030
4141
4242
4343
4444
4530
4646
4747
4824
4914
5020
5151
5252
5353
5418
5555
5642
5757
5858
5959
6060
6161
6262
6342
6412
6565
6666
6767
6868

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