A126915 - cp's OEIS frontend

A126915 Numbers k such that 1 + k^2 + k^4 + k^6 + k^8 + k^10 + k^12 + k^14 + k^16 + k^18 + k^20 + k^21 is prime.

n	a(n)
1	2
2	6
3	12
4	60
5	68
6	138
7	270
8	446
9	488
10	620
11	656
12	798
13	872
14	942
15	950
16	1136
17	1140
18	1256
19	1400
20	1418
21	1506
22	1638
23	1776
24	1922
25	1992
26	2070
27	2082
28	2096
29	2220
30	2346
31	2462
32	2580
33	2606
34	2916

[2, 6, 12, 60, 68, 138, 270, 446, 488, 620, 656, 798, 872, 942, 950, 1136, 1140, 1256, 1400, 1418, 1506, 1638, 1776, 1922, 1992, 2070, 2082, 2096, 2220, 2346, 2462, 2580, 2606, 2916]

cp's OEIS Frontend

A126915 Numbers k such that 1 + k^2 + k^4 + k^6 + k^8 + k^10 + k^12 + k^14 + k^16 + k^18 + k^20 + k^21 is prime.

Table of values

List of values