A127576 - OEIS

A127576 as a simple table

n	a(n)
1	31
2	47
3	79
4	127
5	191
6	223
7	239
8	271
9	367
10	383
11	431
12	463
13	479
14	607
15	719
16	751
17	863
18	911
19	991
20	1039
21	1087
22	1103
23	1151
24	1231
25	1279
26	1327
27	1423
28	1439
29	1471
30	1487
31	1567
32	1583
33	1663
34	1759
35	1823
36	1871
37	1951
38	1999
39	2063
40	2111
41	2143
42	2207
43	2239
44	2287
45	2351
46	2383

[31,47,79,127,191,223,239,271,367,383,431,463,479, 607,719,751,863,911,991,1039,1087,1103,1151,1231, 1279,1327,1423,1439,1471,1487,1567,1583,1663,1759, 1823,1871,1951,1999,2063,2111,2143,2207,2239,2287, 2351,2383]