A080149 - cp's OEIS frontend

A080149 Numbers k such that k^2 + 1 and k^2 + 3 are both prime.

n	a(n)
1	2
2	4
3	10
4	14
5	74
6	94
7	130
8	134
9	146
10	160
11	230
12	256
13	326
14	340
15	350
16	406
17	430
18	440
19	470
20	584
21	634
22	686
23	700
24	704
25	784
26	860
27	920
28	986
29	1054
30	1070
31	1156
32	1210
33	1324
34	1340
35	1354
36	1366
37	1394
38	1420
39	1456
40	1460
41	1564
42	1700
43	1784
44	1816
45	1876
46	2006
47	2080
48	2096
49	2174

[2, 4, 10, 14, 74, 94, 130, 134, 146, 160, 230, 256, 326, 340, 350, 406, 430, 440, 470, 584, 634, 686, 700, 704, 784, 860, 920, 986, 1054, 1070, 1156, 1210, 1324, 1340, 1354, 1366, 1394, 1420, 1456, 1460, 1564, 1700, 1784, 1816, 1876, 2006, 2080, 2096, 2174]

cp's OEIS Frontend

A080149 Numbers k such that k^2 + 1 and k^2 + 3 are both prime.

Table of values

List of values