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A291317 as a simple table

na(n)
11
21
31
43
54
63
77
87
96
1010
117
1212
133
1410
1511
167
1711
181
1912
206
2121
221
237
2412
2525
263
2725
2828
2916
3026
3125
326
3332
3419
3515
3621
3728
383
3912
4021
4124
4213
4321
4436
4517
4645
4741
4845
498
5040
5111
526
5325
5441
5523
564
5743
5852
5951
6057
6128
6221
6311
6447
6526
6629
6757
6851
6948
7056
7112

[1,1,1,3,4,3,7,7,6,10,7,12,3,10,11,7,11,1,12,6,21,
 1,7,12,25,3,25,28,16,26,25,6,32,19,15,21,28,3,12,
 21,24,13,21,36,17,45,41,45,8,40,11,6,25,41,23,4,
 43,52,51,57,28,21,11,47,26,29,57,51,48,56,12]