A260805 - OEIS

A260805 as a simple table

n	a(n)
1	17
2	31
3	41
4	71
5	103
6	113
7	151
8	191
9	239
10	263
11	271
12	281
13	311
14	353
15	431
16	479
17	503
18	521
19	599
20	719
21	743
22	823
23	863
24	911
25	953
26	1031
27	1103
28	1151
29	1319
30	1361
31	1439
32	1487
33	1511
34	1583
35	1607
36	1663
37	1831
38	1871
39	2039
40	2087
41	2111
42	2423
43	2663
44	2711
45	2791
46	2801
47	2903
48	2999

[17,31,41,71,103,113,151,191,239,263,271,281,311, 353,431,479,503,521,599,719,743,823,863,911,953, 1031,1103,1151,1319,1361,1439,1487,1511,1583,1607, 1663,1831,1871,2039,2087,2111,2423,2663,2711,2791, 2801,2903,2999]