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A144308 as a simple table

na(n)
12
23
32
45
55
63
77
810
92
105
1111
1217
133
147
157
1613
177
185
1910
2014
2111
2217
235
243
2515
266
271
2813
2919
3022
312
322
3321
347
3514
3617
3723
3841
396
401
4123
427
4321
4431
4519
4629
471
4847
497
506
5130
527
5313
542
5523
5631
5730
583
596
6013
611
6237
635
6415
651
6629
6737
6861
6933
701
7119
7214
7338
7442
755
761
7730
7831

[2,3,2,5,5,3,7,10,2,5,11,17,3,7,7,13,7,5,10,14,11,
 17,5,3,15,6,1,13,19,22,2,2,21,7,14,17,23,41,6,1,
 23,7,21,31,19,29,1,47,7,6,30,7,13,2,23,31,30,3,6,
 13,1,37,5,15,1,29,37,61,33,1,19,14,38,42,5,1,30,
 31]