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A179857 as a simple table

na(n)
13
23
315
45
515
615
763
89
915
1015
1163
1215
1363
1463
15255
1617
1723
1823
1963
2023
2163
2263
23255
2427
2563
2663
27255
2863
29255
30255
311023
3233
3339
3439
3563
3639
3763
3863
39255
4043
4163
4263
43255
4463
45255
46255
471023
4851
4963
5063
51255
5263
53255
54255
551023
5663
57255
58255
591023
60255
611023
621023

[3,3,15,5,15,15,63,9,15,15,63,15,63,63,255,17,23,
 23,63,23,63,63,255,27,63,63,255,63,255,255,1023,
 33,39,39,63,39,63,63,255,43,63,63,255,63,255,255,
 1023,51,63,63,255,63,255,255,1023,63,255,255,1023,
 255,1023,1023]