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A122315 as a simple table

na(n)
00
11
22
33
44
55
67
78
86
99
1010
1111
1212
1313
1417
1518
1621
1722
1820
1916
2019
2114
2215
2323
2424
2525
2626
2727
2828
2929
3030
3131
3232
3333
3435
3536
3634
3745
3846
3948
4049
4150
4258
4359
4463
4564
4662
4757
4861
4954
5055
5144
5247
5356
5460
5553
5642
5751
5837
5938
6043
6152
6239
6340
6441
6565
6666
6767
6868
6969
7070
7171

[0,1,2,3,4,5,7,8,6,9,10,11,12,13,17,18,21,22,20,
 16,19,14,15,23,24,25,26,27,28,29,30,31,32,33,35,
 36,34,45,46,48,49,50,58,59,63,64,62,57,61,54,55,
 44,47,56,60,53,42,51,37,38,43,52,39,40,41,65,66,
 67,68,69,70,71]