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A260888 as a simple table

na(n)
13
22
341
4211
523
683
743
823
97
103
11601
12109
1323
14251
1531
16251
177
1841
19149
20157
21293
223
23103
2441
252083
26233
277
28647
291877
307
311117
32599
337
34937
35487
367
37251
38149
397
40439
4183
423
437
4443
45643
467
47157
48157
491291
507

[3,2,41,211,23,83,43,23,7,3,601,109,23,251,31,251,
 7,41,149,157,293,3,103,41,2083,233,7,647,1877,7,
 1117,599,7,937,487,7,251,149,7,439,83,3,7,43,643,
 7,157,157,1291,7]