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A278028 as a simple table

na(n)
11
22
31
41
53
64
75
81
92
102
111
126
137
148
159
1610
1711
181
191
201
2112
2213
2314
2415
2516
2617
2718
2819
293
301
3120
322
332
3421
3522
3623
3724
381
393
4025
4126
4227
434
441
4528
4629
4730
4831

[1,2,1,1,3,4,5,1,2,2,1,6,7,8,9,10,11,1,1,1,12,13,
 14,15,16,17,18,19,3,1,20,2,2,21,22,23,24,1,3,25,
 26,27,4,1,28,29,30,31]