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A138241 as a simple table

na(n)
12
22
32
44
53
65
73
87
97
103
119
127
135
146
1510
1611
174
1810
197
206
2112
227
2313
2416
258
265
2710
284
298
3029
3113
3213
337
3421
353
3614
3716
3812
3913
4018
414
4222
436
4414
457
4629
4731
4811
495
5012
5118
527
5327
5417
5519
5615
576
5817
5912
606
6131
6236
6317
647
659
6644
6719
6834
694
7013
7120
7229
7315
7419
7511
7623
7727
7811
7927
8031
817
8237

[2,2,2,4,3,5,3,7,7,3,9,7,5,6,10,11,4,10,7,6,12,7,
 13,16,8,5,10,4,8,29,13,13,7,21,3,14,16,12,13,18,4,
 22,6,14,7,29,31,11,5,12,18,7,27,17,19,15,6,17,12,
 6,31,36,17,7,9,44,19,34,4,13,20,29,15,19,11,23,27,
 11,27,31,7,37]