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A339318 as a simple table

na(n)
11
23
33
49
53
612
73
822
99
1012
113
1239
133
1412
1512
1651
173
1839
193
2039
2112
2212
233
24105
259
2612
2722
2839
293
3057
313
32108
3312
3412
3512
36135
373
3812
3912
40105
413
4257
433
4439
4539
4612
473
48258
499
5039
5112
5239
533
54105
5512
56105
5712
5812
593
60201
613
6212
6339
64221
6512
6657
673
6839
6912
7057

[1,3,3,9,3,12,3,22,9,12,3,39,3,12,12,51,3,39,3,39,
 12,12,3,105,9,12,22,39,3,57,3,108,12,12,12,135,3,
 12,12,105,3,57,3,39,39,12,3,258,9,39,12,39,3,105,
 12,105,12,12,3,201,3,12,39,221,12,57,3,39,12,57]