A380010 - cp's OEIS frontend

A380010 Beginning with 7, least prime such that concatenation of the first n terms is prime.

n	a(n)
1	7
2	3
3	3
4	3
5	31
6	23
7	13
8	3
9	167
10	13
11	137
12	3
13	73
14	383
15	499
16	431
17	13
18	101
19	61
20	47
21	67
22	101
23	13
24	83
25	1237
26	107
27	97
28	467
29	499
30	677
31	1423
32	353
33	73
34	431
35	331
36	683
37	487
38	2141
39	3
40	1753
41	1787
42	31
43	443
44	139
45	653
46	1327
47	17
48	919
49	173
50	2851
51	137
52	547
53	557
54	5167
55	347
56	7867
57	839
58	19
59	179
60	19

[7, 3, 3, 3, 31, 23, 13, 3, 167, 13, 137, 3, 73, 383, 499, 431, 13, 101, 61, 47, 67, 101, 13, 83, 1237, 107, 97, 467, 499, 677, 1423, 353, 73, 431, 331, 683, 487, 2141, 3, 1753, 1787, 31, 443, 139, 653, 1327, 17, 919, 173, 2851, 137, 547, 557, 5167, 347, 7867, 839, 19, 179, 19]

cp's OEIS Frontend

A380010 Beginning with 7, least prime such that concatenation of the first n terms is prime.

Table of values

List of values