A034815 - cp's OEIS frontend

A034815 Concatenations C1 and C2 are both prime (see the comment lines).

n	a(n)
0	33
1	51
2	53
3	63
4	111
5	123
6	129
7	211
8	237
9	273
10	357
11	489
12	519
13	573
14	597
15	609
16	639
17	651
18	653
19	657
20	669
21	681
22	687
23	747
24	753
25	819
26	831
27	873
28	891
29	987
30	997
31	1071
32	1611
33	1881
34	2037
35	2049
36	2247
37	2271
38	2613
39	2763
40	3063
41	3267
42	3393
43	3573
44	3969
45	4251
46	4263
47	4293

[33, 51, 53, 63, 111, 123, 129, 211, 237, 273, 357, 489, 519, 573, 597, 609, 639, 651, 653, 657, 669, 681, 687, 747, 753, 819, 831, 873, 891, 987, 997, 1071, 1611, 1881, 2037, 2049, 2247, 2271, 2613, 2763, 3063, 3267, 3393, 3573, 3969, 4251, 4263, 4293]

cp's OEIS Frontend

A034815 Concatenations C1 and C2 are both prime (see the comment lines).

Table of values

List of values