A212602 - cp's OEIS frontend

A212602 a(n) is the smallest prime such that it and the previous prime are both of the form x^2 + n * y^2.

n	a(n)
1	17
2	3
3	37
4	17
5	409
6	79
7	11
8	97
9	673
10	251
11	53
12	673
13	17
14	239
15	211
16	97
17	353
18	337
19	23
20	521
21	1213
22	97
23	173
24	4201
25	409
26	859
27	439
28	113
29	937
30	7369
31	293
32	2129
33	7573
34	569
35	571
36	673
37	41
38	1567
39	997
40	409
41	1601
42	337
43	47
44	401
45	1801
46	1783
47	1867
48	4201
49	197
50	499
51	733
52	1301

[17, 3, 37, 17, 409, 79, 11, 97, 673, 251, 53, 673, 17, 239, 211, 97, 353, 337, 23, 521, 1213, 97, 173, 4201, 409, 859, 439, 113, 937, 7369, 293, 2129, 7573, 569, 571, 673, 41, 1567, 997, 409, 1601, 337, 47, 401, 1801, 1783, 1867, 4201, 197, 499, 733, 1301]

cp's OEIS Frontend

A212602 a(n) is the smallest prime such that it and the previous prime are both of the form x^2 + n * y^2.

Table of values

List of values