A216554 - cp's OEIS frontend

A216554 Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 3*b^2.

n	a(n)
1	2
2	4
3	11
4	17
5	19
6	41
7	113
8	313
9	353
10	617
11	1097
12	1361
13	4787
14	4793
15	5851
16	8467
17	10691
18	12251
19	13963
20	14449
21	35449
22	36779
23	44507
24	51169
25	56003
26	89849
27	140057
28	148091
29	159521
30	183089
31	193201
32	202667
33	387433
34	443609
35	574219
36	616787
37	692147

[2, 4, 11, 17, 19, 41, 113, 313, 353, 617, 1097, 1361, 4787, 4793, 5851, 8467, 10691, 12251, 13963, 14449, 35449, 36779, 44507, 51169, 56003, 89849, 140057, 148091, 159521, 183089, 193201, 202667, 387433, 443609, 574219, 616787, 692147]

cp's OEIS Frontend

A216554 Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 3*b^2.

Table of values

List of values