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A264350 as a simple table

na(n)
11
21
31
423
57
61
717
81
94063
101
11401
122999
131
14540799
157
164021753
171
184998127
191
201695527
2174023
2217
231
2431
257
261351
2728128619951
281
2953249
307998361
3147
321
335287
349795103
351
36743
37160942871
381134097
39624113
40165383
411
421393
437

[1,1,1,23,7,1,17,1,4063,1,401,2999,1,540799,7,
 4021753,1,4998127,1,1695527,74023,17,1,31,7,1351,
 28128619951,1,53249,7998361,47,1,5287,9795103,1,
 743,160942871,1134097,624113,165383,1,1393,7]