A033246 - OEIS

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A033246 as a simple table

n	a(n)
1	71
2	107
3	293
4	509
5	643
6	647
7	739
8	971
9	1013
10	1039
11	1123
12	1217
13	1361
14	1367
15	1373
16	1423
17	1663
18	1811
19	2083
20	2099
21	2239
22	2309
23	2351
24	2557
25	2657
26	2677
27	2917
28	3181
29	3343
30	3517
31	3533
32	3539
33	3623
34	3671
35	3803

[71,107,293,509,643,647,739,971,1013,1039,1123, 1217,1361,1367,1373,1423,1663,1811,2083,2099,2239, 2309,2351,2557,2657,2677,2917,3181,3343,3517,3533, 3539,3623,3671,3803]