A263258 - OEIS

A263258 as a simple table

n	a(n)
1	0
2	1
3	3
4	5
5	17
6	21
7	23
8	27
9	29
10	31
11	35
12	39
13	41
14	47
15	51
16	53
17	57
18	59
19	61
20	65
21	69
22	71
23	73
24	77
25	221
26	223
27	231
28	233
29	237
30	239
31	245
32	249
33	261
34	263
35	267
36	269
37	275
38	277
39	287
40	291
41	295
42	299
43	303
44	315
45	317
46	323
47	329
48	331
49	335
50	337
51	345
52	347
53	349
54	357
55	363
56	855
57	857
58	1073
59	1077
60	1085
61	1087
62	1095
63	1097
64	1101
65	1111

[0,1,3,5,17,21,23,27,29,31,35,39,41,47,51,53,57, 59,61,65,69,71,73,77,221,223,231,233,237,239,245, 249,261,263,267,269,275,277,287,291,295,299,303, 315,317,323,329,331,335,337,345,347,349,357,363, 855,857,1073,1077,1085,1087,1095,1097,1101,1111]