A067664 - cp's OEIS frontend

A067664 Numbers n such that n^2 + 1 and n^2 + n + 1 are primes.

n	a(n)
1	1
2	2
3	6
4	14
5	20
6	24
7	54
8	66
9	90
10	110
11	150
12	176
13	206
14	236
15	314
16	584
17	644
18	686
19	696
20	860
21	864
22	890
23	920
24	950
25	960
26	1070
27	1146
28	1274
29	1314
30	1340
31	1434
32	1440
33	1494
34	1566
35	1616
36	1644
37	1676
38	1700
39	1716
40	1970
41	1974
42	2054
43	2064
44	2136
45	2360
46	2430
47	2456
48	2604
49	2646

[1, 2, 6, 14, 20, 24, 54, 66, 90, 110, 150, 176, 206, 236, 314, 584, 644, 686, 696, 860, 864, 890, 920, 950, 960, 1070, 1146, 1274, 1314, 1340, 1434, 1440, 1494, 1566, 1616, 1644, 1676, 1700, 1716, 1970, 1974, 2054, 2064, 2136, 2360, 2430, 2456, 2604, 2646]

cp's OEIS Frontend

A067664 Numbers n such that n^2 + 1 and n^2 + n + 1 are primes.

Table of values

List of values