A117065 - OEIS

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A117065 as a simple table

n	a(n)
1	19
2	31
3	43
4	67
5	89
6	101
7	113
8	131
9	229
10	241
11	277
12	359
13	383
14	491
15	523
16	619
17	631
18	643
19	701
20	761
21	1321
22	1381
23	1621
24	2221
25	2861

[19,31,43,67,89,101,113,131,229,241,277,359,383, 491,523,619,631,643,701,761,1321,1381,1621,2221, 2861]