A234852 - cp's OEIS frontend

A234852 Indices k of primes p=prime(k) such that prime(p)-p+1 is prime.

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	9
8	11
9	13
10	14
11	18
12	20
13	23
14	24
15	27
16	29
17	34
18	36
19	40
20	42
21	46
22	47
23	48
24	53
25	58
26	59
27	60
28	62
29	63
30	64
31	66
32	68
33	70
34	71
35	73
36	90
37	95
38	100
39	103
40	105
41	110
42	121
43	122
44	127
45	128
46	132
47	133
48	134
49	141
50	143
51	144
52	153
53	155
54	156
55	162

[1, 2, 3, 4, 6, 7, 9, 11, 13, 14, 18, 20, 23, 24, 27, 29, 34, 36, 40, 42, 46, 47, 48, 53, 58, 59, 60, 62, 63, 64, 66, 68, 70, 71, 73, 90, 95, 100, 103, 105, 110, 121, 122, 127, 128, 132, 133, 134, 141, 143, 144, 153, 155, 156, 162]

cp's OEIS Frontend

A234852 Indices k of primes p=prime(k) such that prime(p)-p+1 is prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	9
8	11
9	13
10	14
11	18
12	20
13	23
14	24
15	27
16	29
17	34
18	36
19	40
20	42
21	46
22	47
23	48
24	53
25	58
26	59
27	60
28	62
29	63
30	64
31	66
32	68
33	70
34	71
35	73
36	90
37	95
38	100
39	103
40	105
41	110
42	121
43	122
44	127
45	128
46	132
47	133
48	134
49	141
50	143
51	144
52	153
53	155
54	156
55	162

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	9
8	11
9	13
10	14
11	18
12	20
13	23
14	24
15	27
16	29
17	34
18	36
19	40
20	42
21	46
22	47
23	48
24	53
25	58
26	59
27	60
28	62
29	63
30	64
31	66
32	68
33	70
34	71
35	73
36	90
37	95
38	100
39	103
40	105
41	110
42	121
43	122
44	127
45	128
46	132
47	133
48	134
49	141
50	143
51	144
52	153
53	155
54	156
55	162

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	9
8	11
9	13
10	14
11	18
12	20
13	23
14	24
15	27
16	29
17	34
18	36
19	40
20	42
21	46
22	47
23	48
24	53
25	58
26	59
27	60
28	62
29	63
30	64
31	66
32	68
33	70
34	71
35	73
36	90
37	95
38	100
39	103
40	105
41	110
42	121
43	122
44	127
45	128
46	132
47	133
48	134
49	141
50	143
51	144
52	153
53	155
54	156
55	162