A233358 - cp's OEIS frontend

A233358 Numbers n such that n^2 concatenated with n + 1 is prime.

n	a(n)
1	2
2	6
3	30
4	32
5	38
6	48
7	50
8	72
9	90
10	92
11	98
12	102
13	110
14	126
15	128
16	150
17	182
18	188
19	212
20	218
21	230
22	242
23	258
24	300
25	318
26	348
27	398
28	420
29	440
30	450
31	462
32	498
33	516
34	518
35	530
36	542
37	572
38	582
39	636
40	660
41	662
42	678
43	702
44	716
45	726
46	728
47	746
48	786
49	798
50	830
51	848
52	872
53	878
54	890
55	908

[2, 6, 30, 32, 38, 48, 50, 72, 90, 92, 98, 102, 110, 126, 128, 150, 182, 188, 212, 218, 230, 242, 258, 300, 318, 348, 398, 420, 440, 450, 462, 498, 516, 518, 530, 542, 572, 582, 636, 660, 662, 678, 702, 716, 726, 728, 746, 786, 798, 830, 848, 872, 878, 890, 908]

cp's OEIS Frontend

A233358 Numbers n such that n^2 concatenated with n + 1 is prime.

Table of values

List of values

n	a(n)
1	2
2	6
3	30
4	32
5	38
6	48
7	50
8	72
9	90
10	92
11	98
12	102
13	110
14	126
15	128
16	150
17	182
18	188
19	212
20	218
21	230
22	242
23	258
24	300
25	318
26	348
27	398
28	420
29	440
30	450
31	462
32	498
33	516
34	518
35	530
36	542
37	572
38	582
39	636
40	660
41	662
42	678
43	702
44	716
45	726
46	728
47	746
48	786
49	798
50	830
51	848
52	872
53	878
54	890
55	908

n	a(n)
1	2
2	6
3	30
4	32
5	38
6	48
7	50
8	72
9	90
10	92
11	98
12	102
13	110
14	126
15	128
16	150
17	182
18	188
19	212
20	218
21	230
22	242
23	258
24	300
25	318
26	348
27	398
28	420
29	440
30	450
31	462
32	498
33	516
34	518
35	530
36	542
37	572
38	582
39	636
40	660
41	662
42	678
43	702
44	716
45	726
46	728
47	746
48	786
49	798
50	830
51	848
52	872
53	878
54	890
55	908

n	a(n)
1	2
2	6
3	30
4	32
5	38
6	48
7	50
8	72
9	90
10	92
11	98
12	102
13	110
14	126
15	128
16	150
17	182
18	188
19	212
20	218
21	230
22	242
23	258
24	300
25	318
26	348
27	398
28	420
29	440
30	450
31	462
32	498
33	516
34	518
35	530
36	542
37	572
38	582
39	636
40	660
41	662
42	678
43	702
44	716
45	726
46	728
47	746
48	786
49	798
50	830
51	848
52	872
53	878
54	890
55	908