A086101 - cp's OEIS frontend

A086101 Numbers j such that the concatenation of the last digit of p(j) and the first digit of prime(j+1) is a prime.

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	11
7	20
8	21
9	25
10	26
11	27
12	28
13	30
14	31
15	32
16	33
17	36
18	37
19	38
20	39
21	40
22	42
23	43
24	44
25	45
26	63
27	64
28	66
29	67
30	68
31	69
32	73
33	125
34	126
35	127
36	128
37	130
38	131
39	132
40	133
41	135
42	136
43	137
44	154
45	155
46	156
47	159
48	160
49	161
50	163
51	164
52	165
53	167
54	168
55	170
56	172
57	173
58	174
59	177
60	178
61	179

[1, 4, 5, 6, 7, 11, 20, 21, 25, 26, 27, 28, 30, 31, 32, 33, 36, 37, 38, 39, 40, 42, 43, 44, 45, 63, 64, 66, 67, 68, 69, 73, 125, 126, 127, 128, 130, 131, 132, 133, 135, 136, 137, 154, 155, 156, 159, 160, 161, 163, 164, 165, 167, 168, 170, 172, 173, 174, 177, 178, 179]

cp's OEIS Frontend

A086101 Numbers j such that the concatenation of the last digit of p(j) and the first digit of prime(j+1) is a prime.

Table of values

List of values

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	11
7	20
8	21
9	25
10	26
11	27
12	28
13	30
14	31
15	32
16	33
17	36
18	37
19	38
20	39
21	40
22	42
23	43
24	44
25	45
26	63
27	64
28	66
29	67
30	68
31	69
32	73
33	125
34	126
35	127
36	128
37	130
38	131
39	132
40	133
41	135
42	136
43	137
44	154
45	155
46	156
47	159
48	160
49	161
50	163
51	164
52	165
53	167
54	168
55	170
56	172
57	173
58	174
59	177
60	178
61	179

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	11
7	20
8	21
9	25
10	26
11	27
12	28
13	30
14	31
15	32
16	33
17	36
18	37
19	38
20	39
21	40
22	42
23	43
24	44
25	45
26	63
27	64
28	66
29	67
30	68
31	69
32	73
33	125
34	126
35	127
36	128
37	130
38	131
39	132
40	133
41	135
42	136
43	137
44	154
45	155
46	156
47	159
48	160
49	161
50	163
51	164
52	165
53	167
54	168
55	170
56	172
57	173
58	174
59	177
60	178
61	179

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	11
7	20
8	21
9	25
10	26
11	27
12	28
13	30
14	31
15	32
16	33
17	36
18	37
19	38
20	39
21	40
22	42
23	43
24	44
25	45
26	63
27	64
28	66
29	67
30	68
31	69
32	73
33	125
34	126
35	127
36	128
37	130
38	131
39	132
40	133
41	135
42	136
43	137
44	154
45	155
46	156
47	159
48	160
49	161
50	163
51	164
52	165
53	167
54	168
55	170
56	172
57	173
58	174
59	177
60	178
61	179