A269671 - cp's OEIS frontend

A269671 Integers n such that the concatenation of prime(n) and prime(n+1) and also concatenation of prime(n+1) and prime(n) are prime.

n	a(n)
1	46
2	51
3	55
4	71
5	99
6	119
7	164
8	298
9	345
10	461
11	509
12	523
13	588
14	668
15	779
16	827
17	844
18	848
19	999
20	1100
21	1151
22	1215
23	1306
24	1321
25	1408
26	1553
27	1568
28	1616
29	1779
30	1900
31	1931
32	1953
33	2102
34	2150
35	2221
36	2444
37	2653
38	2677
39	3116
40	3405
41	3527
42	3731
43	3776
44	3890
45	3898
46	3989
47	4070
48	4188
49	4257
50	4546
51	4556
52	4574
53	4681
54	4694
55	4846
56	4947
57	4948
58	4974

[46, 51, 55, 71, 99, 119, 164, 298, 345, 461, 509, 523, 588, 668, 779, 827, 844, 848, 999, 1100, 1151, 1215, 1306, 1321, 1408, 1553, 1568, 1616, 1779, 1900, 1931, 1953, 2102, 2150, 2221, 2444, 2653, 2677, 3116, 3405, 3527, 3731, 3776, 3890, 3898, 3989, 4070, 4188, 4257, 4546, 4556, 4574, 4681, 4694, 4846, 4947, 4948, 4974]

cp's OEIS Frontend

A269671 Integers n such that the concatenation of prime(n) and prime(n+1) and also concatenation of prime(n+1) and prime(n) are prime.

Table of values

List of values