A239874 - cp's OEIS frontend

A239874 Integers k such that 2k^2 + 1 and 2k^3 + 1 are prime.

n	a(n)
1	1
2	6
3	9
4	21
5	27
6	30
7	72
8	96
9	99
10	162
11	186
12	204
13	237
14	264
15	297
16	321
17	357
18	360
19	375
20	492
21	537
22	621
23	759
24	819
25	834
26	897
27	936
28	1065
29	1242
30	1326
31	1329
32	1359
33	1419
34	1494
35	1506
36	1596
37	1662
38	1704
39	1740
40	1749
41	1761
42	1842
43	1869
44	2157
45	2175
46	2250
47	2274
48	2451
49	2547

[1, 6, 9, 21, 27, 30, 72, 96, 99, 162, 186, 204, 237, 264, 297, 321, 357, 360, 375, 492, 537, 621, 759, 819, 834, 897, 936, 1065, 1242, 1326, 1329, 1359, 1419, 1494, 1506, 1596, 1662, 1704, 1740, 1749, 1761, 1842, 1869, 2157, 2175, 2250, 2274, 2451, 2547]

cp's OEIS Frontend

A239874 Integers k such that 2k^2 + 1 and 2k^3 + 1 are prime.

Table of values

List of values

cp's OEIS Frontend

A239874 Integers k such that 2*k^2 + 1 and 2*k^3 + 1 are prime.

Table of values

List of values

A239874 Integers k such that 2k^2 + 1 and 2k^3 + 1 are prime.