A049556 - OEIS

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A049556 as a simple table

n	a(n)
1	2
2	23
3	31
4	47
5	71
6	89
7	127
8	167
9	191
10	223
11	233
12	239
13	257
14	263
15	311
16	359
17	383
18	431
19	439
20	479
21	503
22	599
23	601
24	647
25	719
26	727
27	743
28	839
29	863
30	881
31	887
32	911
33	919
34	983
35	1031
36	1103
37	1151
38	1217
39	1223
40	1289
41	1319
42	1327
43	1367
44	1399
45	1423
46	1433
47	1439
48	1471
49	1487
50	1511

[2,23,31,47,71,89,127,167,191,223,233,239,257,263, 311,359,383,431,439,479,503,599,601,647,719,727, 743,839,863,881,887,911,919,983,1031,1103,1151, 1217,1223,1289,1319,1327,1367,1399,1423,1433,1439, 1471,1487,1511]