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A263268 as a simple table

na(n)
00
11
22
33
44
56
65
711
87
98
109
1112
1210
1315
1413
1516
1617
1720
1814
1926
2018
2127
2219
2330
2421
2522
2623
2734
2824
2938
3025
3146
3228
3347
3429
3550
3639
3754
3832
3955
4031
4159
4233
4367
4435
4560
4637
4768
4836
4943
5040
5174
5244
5381
5445
5582
5641
5788
5849
5995
6042
61103
6252
6396
6497
65108
6653
67114
6857
69115
7058
71120
7248
73128
7463
75121
7664
77138
7865
79145
8066

[0,1,2,3,4,6,5,11,7,8,9,12,10,15,13,16,17,20,14,
 26,18,27,19,30,21,22,23,34,24,38,25,46,28,47,29,
 50,39,54,32,55,31,59,33,67,35,60,37,68,36,43,40,
 74,44,81,45,82,41,88,49,95,42,103,52,96,97,108,53,
 114,57,115,58,120,48,128,63,121,64,138,65,145,66]