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A299458 as a simple table

na(n)
11
21
31
41
55
61
71
87
97
101
111
1218
137
1418
151
161
1731
1819
1919
2031
211
221
2365
2435
2548
2635
2765
281
291
30130
3195
32175
33175
3495
35130
361
371
38253
39223
40508
411015
42508
43223
44253
451
461
47519
48571
491522
503514
513514
521522
53571
54519
551
561
571018
581535
595065
6014409
6119041
6214409
635065
641535

[1,1,1,1,5,1,1,7,7,1,1,18,7,18,1,1,31,19,19,31,1,
 1,65,35,48,35,65,1,1,130,95,175,175,95,130,1,1,
 253,223,508,1015,508,223,253,1,1,519,571,1522,
 3514,3514,1522,571,519,1,1,1018,1535,5065,14409,
 19041,14409,5065,1535]