A380943 - cp's OEIS frontend

A380943 Primes written in decimal representation by the concatenation of primes p and q such that the concatenation of q and p also forms a prime.

n	a(n)
1	37
2	73
3	113
4	173
5	197
6	311
7	313
8	317
9	331
10	337
11	359
12	367
13	373
14	593
15	617
16	673
17	719
18	733
19	761
20	797
21	977
22	1093
23	1097
24	1123
25	1277
26	1319
27	1361
28	1373
29	1783
30	1913
31	1931
32	1979
33	1997
34	2293
35	2297
36	2311
37	2347
38	2389
39	2713
40	2837
41	2971
42	3109
43	3119
44	3137
45	3191
46	3229
47	3271

[37, 73, 113, 173, 197, 311, 313, 317, 331, 337, 359, 367, 373, 593, 617, 673, 719, 733, 761, 797, 977, 1093, 1097, 1123, 1277, 1319, 1361, 1373, 1783, 1913, 1931, 1979, 1997, 2293, 2297, 2311, 2347, 2389, 2713, 2837, 2971, 3109, 3119, 3137, 3191, 3229, 3271]

cp's OEIS Frontend

A380943 Primes written in decimal representation by the concatenation of primes p and q such that the concatenation of q and p also forms a prime.

Table of values

List of values