A239920 - cp's OEIS frontend

A239920 Integers n such that 2n^2+1, 2n^3+1 and 2n^4+1 are prime.

n	a(n)
1	1
2	6
3	21
4	30
5	96
6	297
7	375
8	621
9	1359
10	1704
11	1749
12	1761
13	3696
14	3849
15	4467
16	8025
17	8646
18	9834
19	11352
20	15630
21	17397
22	17949
23	19575
24	20274
25	27087
26	28452
27	30504
28	32154
29	32307
30	33666
31	35670
32	36240
33	37785
34	37962
35	39927
36	40617
37	42987
38	44250
39	47559
40	49335
41	49599

[1, 6, 21, 30, 96, 297, 375, 621, 1359, 1704, 1749, 1761, 3696, 3849, 4467, 8025, 8646, 9834, 11352, 15630, 17397, 17949, 19575, 20274, 27087, 28452, 30504, 32154, 32307, 33666, 35670, 36240, 37785, 37962, 39927, 40617, 42987, 44250, 47559, 49335, 49599]

cp's OEIS Frontend

A239920 Integers n such that 2n^2+1, 2n^3+1 and 2n^4+1 are prime.

Table of values

List of values