A198593 - OEIS

A198593 as a simple table

n	a(n)
1	43
2	87
3	89
4	173
5	177
6	179
7	349
8	355
9	357
10	385
11	423
12	693
13	705
14	709
15	717
16	729
17	761
18	769
19	771
20	777
21	847
22	1393
23	1397
24	1411
25	1415
26	1421
27	1429
28	1457
29	1459
30	1465
31	1481
32	1523
33	1539
34	1541
35	1547
36	1555
37	1569
38	1689
39	1693
40	1697
41	2773
42	2787
43	2801
44	2821
45	2831
46	2837
47	2869

[43,87,89,173,177,179,349,355,357,385,423,693,705, 709,717,729,761,769,771,777,847,1393,1397,1411, 1415,1421,1429,1457,1459,1465,1481,1523,1539,1541, 1547,1555,1569,1689,1693,1697,2773,2787,2801,2821, 2831,2837,2869]