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A266641 as a simple table

na(n)
00
11
22
33
44
55
66
711
88
99
1010
1113
1212
137
1414
1515
1632
1723
1818
1935
2020
2133
2226
2319
2424
2529
2638
2727
2828
2917
3030
3137
3216
3321
3434
35113
3636
3741
3850
3987
4040
4131
4242
4377
44104
4545
46110
47101
4896
4925
5022
5169
5268
5395
5454
5547
5656
5739
5886
5983
6060
6159
6274
6399
6492
6565
66114
6797
6844
6981
7070
7149
7272
7389
7482
7575
7688
7773
7866
79121
8080
8151

[0,1,2,3,4,5,6,11,8,9,10,13,12,7,14,15,32,23,18,
 35,20,33,26,19,24,29,38,27,28,17,30,37,16,21,34,
 113,36,41,50,87,40,31,42,77,104,45,110,101,96,25,
 22,69,68,95,54,47,56,39,86,83,60,59,74,99,92,65,
 114,97,44,81,70,49,72,89,82,75,88,73,66,121,80,51]