A176833 - cp's OEIS frontend

A176833 Smallest prime p = prime(i) such that concatenation q(i) = 13//0_(k)//prime(i) (k = 0, 1, 2, ...) is prime.

n	a(n)
1	7
2	3
3	3
4	3
5	151
6	61
7	7
8	3
9	19
10	3
11	109
12	109
13	19
14	19
15	37
16	409
17	109
18	97
19	61
20	19
21	73
22	109
23	139
24	139
25	619
26	31
27	127
28	31
29	193
30	3
31	43
32	19
33	337
34	7
35	73
36	367
37	109
38	373
39	139
40	139

[7, 3, 3, 3, 151, 61, 7, 3, 19, 3, 109, 109, 19, 19, 37, 409, 109, 97, 61, 19, 73, 109, 139, 139, 619, 31, 127, 31, 193, 3, 43, 19, 337, 7, 73, 367, 109, 373, 139, 139]

cp's OEIS Frontend

A176833 Smallest prime p = prime(i) such that concatenation q(i) = 13//0_(k)//prime(i) (k = 0, 1, 2, ...) is prime.

Table of values

List of values

n	a(n)
1	7
2	3
3	3
4	3
5	151
6	61
7	7
8	3
9	19
10	3
11	109
12	109
13	19
14	19
15	37
16	409
17	109
18	97
19	61
20	19
21	73
22	109
23	139
24	139
25	619
26	31
27	127
28	31
29	193
30	3
31	43
32	19
33	337
34	7
35	73
36	367
37	109
38	373
39	139
40	139

n	a(n)
1	7
2	3
3	3
4	3
5	151
6	61
7	7
8	3
9	19
10	3
11	109
12	109
13	19
14	19
15	37
16	409
17	109
18	97
19	61
20	19
21	73
22	109
23	139
24	139
25	619
26	31
27	127
28	31
29	193
30	3
31	43
32	19
33	337
34	7
35	73
36	367
37	109
38	373
39	139
40	139

n	a(n)
1	7
2	3
3	3
4	3
5	151
6	61
7	7
8	3
9	19
10	3
11	109
12	109
13	19
14	19
15	37
16	409
17	109
18	97
19	61
20	19
21	73
22	109
23	139
24	139
25	619
26	31
27	127
28	31
29	193
30	3
31	43
32	19
33	337
34	7
35	73
36	367
37	109
38	373
39	139
40	139