A097523 - cp's OEIS frontend

A097523 a(n) = least k such that k - prime(n) and k + prime(n) are both prime.

n	a(n)
1	5
2	8
3	8
4	10
5	18
6	16
7	20
8	22
9	30
10	32
11	36
12	42
13	48
14	46
15	50
16	56
17	72
18	66
19	70
20	78
21	76
22	84
23	90
24	92
25	100
26	132
27	108
28	120
29	114
30	116
31	130
32	138
33	140
34	142
35	162
36	156
37	160
38	168
39	170
40	176
41	210
42	186
43	198
44	196
45	200
46	202
47	222
48	226
49	230
50	232
51	246
52	252
53	246
54	258
55	264
56	294
57	272
58	276

[5, 8, 8, 10, 18, 16, 20, 22, 30, 32, 36, 42, 48, 46, 50, 56, 72, 66, 70, 78, 76, 84, 90, 92, 100, 132, 108, 120, 114, 116, 130, 138, 140, 142, 162, 156, 160, 168, 170, 176, 210, 186, 198, 196, 200, 202, 222, 226, 230, 232, 246, 252, 246, 258, 264, 294, 272, 276]

cp's OEIS Frontend

A097523 a(n) = least k such that k - prime(n) and k + prime(n) are both prime.

Table of values

List of values

n	a(n)
1	5
2	8
3	8
4	10
5	18
6	16
7	20
8	22
9	30
10	32
11	36
12	42
13	48
14	46
15	50
16	56
17	72
18	66
19	70
20	78
21	76
22	84
23	90
24	92
25	100
26	132
27	108
28	120
29	114
30	116
31	130
32	138
33	140
34	142
35	162
36	156
37	160
38	168
39	170
40	176
41	210
42	186
43	198
44	196
45	200
46	202
47	222
48	226
49	230
50	232
51	246
52	252
53	246
54	258
55	264
56	294
57	272
58	276

n	a(n)
1	5
2	8
3	8
4	10
5	18
6	16
7	20
8	22
9	30
10	32
11	36
12	42
13	48
14	46
15	50
16	56
17	72
18	66
19	70
20	78
21	76
22	84
23	90
24	92
25	100
26	132
27	108
28	120
29	114
30	116
31	130
32	138
33	140
34	142
35	162
36	156
37	160
38	168
39	170
40	176
41	210
42	186
43	198
44	196
45	200
46	202
47	222
48	226
49	230
50	232
51	246
52	252
53	246
54	258
55	264
56	294
57	272
58	276

n	a(n)
1	5
2	8
3	8
4	10
5	18
6	16
7	20
8	22
9	30
10	32
11	36
12	42
13	48
14	46
15	50
16	56
17	72
18	66
19	70
20	78
21	76
22	84
23	90
24	92
25	100
26	132
27	108
28	120
29	114
30	116
31	130
32	138
33	140
34	142
35	162
36	156
37	160
38	168
39	170
40	176
41	210
42	186
43	198
44	196
45	200
46	202
47	222
48	226
49	230
50	232
51	246
52	252
53	246
54	258
55	264
56	294
57	272
58	276