A359978 - cp's OEIS frontend

A359978 Prime numbers whose decimal representation can be split into two nonempty parts without leading 0, say x and y (in that order), and such that the concatenation of y and x yields a different prime number.

n	a(n)
1	13
2	17
3	31
4	37
5	71
6	73
7	79
8	97
9	113
10	127
11	131
12	149
13	157
14	163
15	173
16	181
17	191
18	197
19	199
20	271
21	277
22	311
23	313
24	317
25	331
26	337
27	359
28	367
29	373
30	379
31	397
32	419
33	479
34	491
35	571
36	577
37	593
38	617
39	631
40	673
41	719
42	727
43	733
44	739
45	757
46	761
47	787
48	797
49	811
50	839
51	877
52	911
53	919
54	937

[13, 17, 31, 37, 71, 73, 79, 97, 113, 127, 131, 149, 157, 163, 173, 181, 191, 197, 199, 271, 277, 311, 313, 317, 331, 337, 359, 367, 373, 379, 397, 419, 479, 491, 571, 577, 593, 617, 631, 673, 719, 727, 733, 739, 757, 761, 787, 797, 811, 839, 877, 911, 919, 937]

cp's OEIS Frontend

A359978 Prime numbers whose decimal representation can be split into two nonempty parts without leading 0, say x and y (in that order), and such that the concatenation of y and x yields a different prime number.

Table of values

List of values

n	a(n)
1	13
2	17
3	31
4	37
5	71
6	73
7	79
8	97
9	113
10	127
11	131
12	149
13	157
14	163
15	173
16	181
17	191
18	197
19	199
20	271
21	277
22	311
23	313
24	317
25	331
26	337
27	359
28	367
29	373
30	379
31	397
32	419
33	479
34	491
35	571
36	577
37	593
38	617
39	631
40	673
41	719
42	727
43	733
44	739
45	757
46	761
47	787
48	797
49	811
50	839
51	877
52	911
53	919
54	937

n	a(n)
1	13
2	17
3	31
4	37
5	71
6	73
7	79
8	97
9	113
10	127
11	131
12	149
13	157
14	163
15	173
16	181
17	191
18	197
19	199
20	271
21	277
22	311
23	313
24	317
25	331
26	337
27	359
28	367
29	373
30	379
31	397
32	419
33	479
34	491
35	571
36	577
37	593
38	617
39	631
40	673
41	719
42	727
43	733
44	739
45	757
46	761
47	787
48	797
49	811
50	839
51	877
52	911
53	919
54	937

n	a(n)
1	13
2	17
3	31
4	37
5	71
6	73
7	79
8	97
9	113
10	127
11	131
12	149
13	157
14	163
15	173
16	181
17	191
18	197
19	199
20	271
21	277
22	311
23	313
24	317
25	331
26	337
27	359
28	367
29	373
30	379
31	397
32	419
33	479
34	491
35	571
36	577
37	593
38	617
39	631
40	673
41	719
42	727
43	733
44	739
45	757
46	761
47	787
48	797
49	811
50	839
51	877
52	911
53	919
54	937