A361904 - cp's OEIS frontend

A361904 Odd numbers k such that for all even divisors d of k^2+1, d^2+1 is a prime number.

n	a(n)
1	1
2	3
3	5
4	45
5	65
6	175
7	277
8	345
9	435
10	573
11	673
12	695
13	715
14	875
15	955
16	985
17	1095
18	1255
19	1405
20	1495
21	1515
22	1845
23	1915
24	2035
25	2135
26	2315
27	2375
28	2525
29	2687
30	2805
31	2837
32	2965
33	3035
34	3665
35	3715
36	3725
37	4185
38	4225
39	4265
40	4345
41	4495
42	4635
43	4865
44	5987
45	6195
46	6205
47	6315

[1, 3, 5, 45, 65, 175, 277, 345, 435, 573, 673, 695, 715, 875, 955, 985, 1095, 1255, 1405, 1495, 1515, 1845, 1915, 2035, 2135, 2315, 2375, 2525, 2687, 2805, 2837, 2965, 3035, 3665, 3715, 3725, 4185, 4225, 4265, 4345, 4495, 4635, 4865, 5987, 6195, 6205, 6315]

cp's OEIS Frontend

A361904 Odd numbers k such that for all even divisors d of k^2+1, d^2+1 is a prime number.

Table of values

List of values