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A168166 as a simple table

na(n)
137
21123
31327
42347
53163
659119
771143
879159
9101203
10113227
11151303
12163327
13173347
14193387
15199399
16229459
17269539
18281563
19331663
20359719
21383767
22431863
23491983
245091019
255691139
266611323
277091419
287191439
298291659
308391679
318531707

[37,1123,1327,2347,3163,59119,71143,79159,101203,
 113227,151303,163327,173347,193387,199399,229459,
 269539,281563,331663,359719,383767,431863,491983,
 5091019,5691139,6611323,7091419,7191439,8291659,
 8391679,8531707]