A030470 - cp's OEIS frontend

A030470 Numbers k such that k concatenated with k+1, k+2, k+3 is prime.

n	a(n)
1	4
2	14
3	20
4	34
5	58
6	64
7	118
8	140
9	148
10	176
11	196
12	218
13	220
14	236
15	238
16	268
17	278
18	286
19	316
20	334
21	374
22	386
23	398
24	428
25	430
26	436
27	446
28	460
29	470
30	496
31	508
32	514
33	550
34	566
35	568
36	590
37	610
38	616
39	634
40	644
41	670
42	674
43	688
44	706
45	718
46	728
47	740
48	746
49	764
50	770

[4, 14, 20, 34, 58, 64, 118, 140, 148, 176, 196, 218, 220, 236, 238, 268, 278, 286, 316, 334, 374, 386, 398, 428, 430, 436, 446, 460, 470, 496, 508, 514, 550, 566, 568, 590, 610, 616, 634, 644, 670, 674, 688, 706, 718, 728, 740, 746, 764, 770]

cp's OEIS Frontend

A030470 Numbers k such that k concatenated with k+1, k+2, k+3 is prime.

Table of values

List of values

n	a(n)
1	4
2	14
3	20
4	34
5	58
6	64
7	118
8	140
9	148
10	176
11	196
12	218
13	220
14	236
15	238
16	268
17	278
18	286
19	316
20	334
21	374
22	386
23	398
24	428
25	430
26	436
27	446
28	460
29	470
30	496
31	508
32	514
33	550
34	566
35	568
36	590
37	610
38	616
39	634
40	644
41	670
42	674
43	688
44	706
45	718
46	728
47	740
48	746
49	764
50	770

n	a(n)
1	4
2	14
3	20
4	34
5	58
6	64
7	118
8	140
9	148
10	176
11	196
12	218
13	220
14	236
15	238
16	268
17	278
18	286
19	316
20	334
21	374
22	386
23	398
24	428
25	430
26	436
27	446
28	460
29	470
30	496
31	508
32	514
33	550
34	566
35	568
36	590
37	610
38	616
39	634
40	644
41	670
42	674
43	688
44	706
45	718
46	728
47	740
48	746
49	764
50	770

n	a(n)
1	4
2	14
3	20
4	34
5	58
6	64
7	118
8	140
9	148
10	176
11	196
12	218
13	220
14	236
15	238
16	268
17	278
18	286
19	316
20	334
21	374
22	386
23	398
24	428
25	430
26	436
27	446
28	460
29	470
30	496
31	508
32	514
33	550
34	566
35	568
36	590
37	610
38	616
39	634
40	644
41	670
42	674
43	688
44	706
45	718
46	728
47	740
48	746
49	764
50	770