A269728 - cp's OEIS frontend

A269728 Let k be a number not a power of 2 (see A057716), and define r by 2^(r-1) < k < 2^r; a(n) is smallest prime of the form 2^r*m+1 such that the exponential sum S(sigma_{m,k}) avoids p.

n	a(n)
1	5
2	17
3	41
4	73
5	97
6	17
7	17
8	17
9	17
10	17
11	17
12	1601
13	97
14	97
15	449
16	257
17	97
18	97
19	97
20	97
21	193
22	257
23	97
24	97
25	97
26	449
27	193
28	1409
29	193
30	193
31	193
32	257
33	193
34	449
35	769
36	257
37	193
38	449
39	257
40	193
41	193
42	193
43	193
44	257
45	449
46	193
47	193
48	193
49	257
50	449
51	257
52	257
53	257
54	449
55	641

[5, 17, 41, 73, 97, 17, 17, 17, 17, 17, 17, 1601, 97, 97, 449, 257, 97, 97, 97, 97, 193, 257, 97, 97, 97, 449, 193, 1409, 193, 193, 193, 257, 193, 449, 769, 257, 193, 449, 257, 193, 193, 193, 193, 257, 449, 193, 193, 193, 257, 449, 257, 257, 257, 449, 641]

cp's OEIS Frontend

A269728 Let k be a number not a power of 2 (see A057716), and define r by 2^(r-1) < k < 2^r; a(n) is smallest prime of the form 2^r*m+1 such that the exponential sum S(sigma_{m,k}) avoids p.

Table of values

List of values