A080156 - cp's OEIS frontend

A080156 Values of n corresponding to the terms in sequence A080155. For any k, the concatenation of the a(1) to a(k)-th primes is prime and each value of k is the smallest for which this is true.

n	a(n)
1	1
2	2
3	5
4	11
5	15
6	50
7	54
8	106
9	148
10	149
11	156
12	188
13	200
14	211
15	248
16	326
17	359
18	374
19	417
20	467
21	699
22	798
23	891
24	966
25	1038
26	1519
27	1542
28	1578
29	1831
30	1908
31	1982
32	2079
33	2305
34	2640
35	2660
36	2845
37	3078
38	3145
39	3760
40	3777
41	3835
42	4538
43	4630
44	4991
45	5019
46	5554
47	5658
48	5827

[1, 2, 5, 11, 15, 50, 54, 106, 148, 149, 156, 188, 200, 211, 248, 326, 359, 374, 417, 467, 699, 798, 891, 966, 1038, 1519, 1542, 1578, 1831, 1908, 1982, 2079, 2305, 2640, 2660, 2845, 3078, 3145, 3760, 3777, 3835, 4538, 4630, 4991, 5019, 5554, 5658, 5827]

cp's OEIS Frontend

A080156 Values of n corresponding to the terms in sequence A080155. For any k, the concatenation of the a(1) to a(k)-th primes is prime and each value of k is the smallest for which this is true.

Table of values

List of values