A080152 - cp's OEIS frontend

A080152 Values of n corresponding to the primes given in A073640. The concatenation of the a(n) and a(n+1)th primes for any n is also prime.

n	a(n)
1	1
2	2
3	4
4	8
5	11
6	12
7	18
8	21
9	31
10	34
11	46
12	47
13	50
14	61
15	78
16	84
17	85
18	90
19	99
20	100
21	101
22	106
23	110
24	111
25	114
26	131
27	133
28	138
29	141
30	157
31	159
32	167
33	169
34	172
35	175
36	183
37	197
38	198
39	211
40	229
41	231
42	232
43	233
44	235
45	260
46	261
47	269
48	276
49	285
50	289
51	295
52	306
53	322
54	337
55	339
56	340
57	347

[1, 2, 4, 8, 11, 12, 18, 21, 31, 34, 46, 47, 50, 61, 78, 84, 85, 90, 99, 100, 101, 106, 110, 111, 114, 131, 133, 138, 141, 157, 159, 167, 169, 172, 175, 183, 197, 198, 211, 229, 231, 232, 233, 235, 260, 261, 269, 276, 285, 289, 295, 306, 322, 337, 339, 340, 347]

cp's OEIS Frontend

A080152 Values of n corresponding to the primes given in A073640. The concatenation of the a(n) and a(n+1)th primes for any n is also prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	8
5	11
6	12
7	18
8	21
9	31
10	34
11	46
12	47
13	50
14	61
15	78
16	84
17	85
18	90
19	99
20	100
21	101
22	106
23	110
24	111
25	114
26	131
27	133
28	138
29	141
30	157
31	159
32	167
33	169
34	172
35	175
36	183
37	197
38	198
39	211
40	229
41	231
42	232
43	233
44	235
45	260
46	261
47	269
48	276
49	285
50	289
51	295
52	306
53	322
54	337
55	339
56	340
57	347

n	a(n)
1	1
2	2
3	4
4	8
5	11
6	12
7	18
8	21
9	31
10	34
11	46
12	47
13	50
14	61
15	78
16	84
17	85
18	90
19	99
20	100
21	101
22	106
23	110
24	111
25	114
26	131
27	133
28	138
29	141
30	157
31	159
32	167
33	169
34	172
35	175
36	183
37	197
38	198
39	211
40	229
41	231
42	232
43	233
44	235
45	260
46	261
47	269
48	276
49	285
50	289
51	295
52	306
53	322
54	337
55	339
56	340
57	347

n	a(n)
1	1
2	2
3	4
4	8
5	11
6	12
7	18
8	21
9	31
10	34
11	46
12	47
13	50
14	61
15	78
16	84
17	85
18	90
19	99
20	100
21	101
22	106
23	110
24	111
25	114
26	131
27	133
28	138
29	141
30	157
31	159
32	167
33	169
34	172
35	175
36	183
37	197
38	198
39	211
40	229
41	231
42	232
43	233
44	235
45	260
46	261
47	269
48	276
49	285
50	289
51	295
52	306
53	322
54	337
55	339
56	340
57	347