A138937 - cp's OEIS frontend

A138937 Indices k such that A019325(k)=Phi[k](7) is prime, where Phi is a cyclotomic polynomial.

n	a(n)
1	5
2	6
3	13
4	18
5	21
6	28
7	30
8	34
9	36
10	46
11	48
12	50
13	54
14	55
15	58
16	63
17	76
18	84
19	94
20	105
21	122
22	131
23	148
24	149
25	224
26	280
27	288
28	296
29	332
30	352
31	456
32	528
33	531
34	581
35	650
36	654
37	730
38	740
39	759
40	1026
41	1047
42	1065
43	1460
44	1660
45	1699
46	1959
47	2067
48	2260
49	2380
50	2665
51	2890
52	3238
53	4020

[5, 6, 13, 18, 21, 28, 30, 34, 36, 46, 48, 50, 54, 55, 58, 63, 76, 84, 94, 105, 122, 131, 148, 149, 224, 280, 288, 296, 332, 352, 456, 528, 531, 581, 650, 654, 730, 740, 759, 1026, 1047, 1065, 1460, 1660, 1699, 1959, 2067, 2260, 2380, 2665, 2890, 3238, 4020]

cp's OEIS Frontend

A138937 Indices k such that A019325(k)=Phi[k](7) is prime, where Phi is a cyclotomic polynomial.

Table of values

List of values