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A073280 as a simple table

na(n)
00
11
22
33
45
54
66
78
87
913
1012
1111
1210
139
1415
1514
1619
1722
1821
1916
2020
2118
2217
2336
2435
2534
2632
2731
2833
2930
3029
3127
3226
3328
3425
3524
3623
3741
3840
3939
4038
4137
4252
4351
4460
4564
4663
4756
4862
4959
5058
5143
5242
5353
5461
5557
5647
5755
5850
5949
6044
6154
6248
6346
6445
65106
66105
67104
68101
69100

[0,1,2,3,5,4,6,8,7,13,12,11,10,9,15,14,19,22,21,
 16,20,18,17,36,35,34,32,31,33,30,29,27,26,28,25,
 24,23,41,40,39,38,37,52,51,60,64,63,56,62,59,58,
 43,42,53,61,57,47,55,50,49,44,54,48,46,45,106,105,
 104,101,100]