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A057117 as a simple table

na(n)
00
11
22
33
44
55
67
78
86
99
1010
1112
1213
1311
1417
1518
1621
1722
1820
1914
2015
2116
2219
2323
2424
2526
2627
2725
2831
2932
3035
3136
3234
3328
3429
3530
3633
3745
3846
3949
4050
4148
4258
4359
4463
4564
4662
4754
4855
4957
5061
5137
5238
5340
5441
5539
5644
5747
5842
5943
6056
6160
6251
6352
6453
6565
6666
6768
6869
6967
7073
7174

[0,1,2,3,4,5,7,8,6,9,10,12,13,11,17,18,21,22,20,
 14,15,16,19,23,24,26,27,25,31,32,35,36,34,28,29,
 30,33,45,46,49,50,48,58,59,63,64,62,54,55,57,61,
 37,38,40,41,39,44,47,42,43,56,60,51,52,53,65,66,
 68,69,67,73,74]