A278637 - OEIS

A278637 as a simple table

n	a(n)
1	3
2	4
3	5
4	7
5	8
6	9
7	10
8	11
9	13
10	14
11	17
12	19
13	22
14	23
15	26
16	29
17	31
18	34
19	41
20	43
21	47
22	53
23	59
24	61
25	71
26	73
27	79
28	83
29	89
30	94
31	101
32	107
33	109
34	113
35	121
36	127
37	131
38	137
39	151
40	167
41	173
42	191
43	193
44	199
45	227
46	251
47	271
48	277
49	293
50	331
51	353
52	359
53	397
54	401
55	431
56	433
57	449
58	467
59	509
60	569
61	571
62	587
63	599
64	601
65	613
66	631
67	653
68	743
69	991
70	1091
71	1223
72	1373
73	1487

[3,4,5,7,8,9,10,11,13,14,17,19,22,23,26,29,31,34, 41,43,47,53,59,61,71,73,79,83,89,94,101,107,109, 113,121,127,131,137,151,167,173,191,193,199,227, 251,271,277,293,331,353,359,397,401,431,433,449, 467,509,569,571,587,599,601,613,631,653,743,991, 1091,1223,1373,1487]