A165768 - cp's OEIS frontend

A165768 Smallest prime factor of the semiprime 2^A165767(n)-A165767(n).

n	a(n)
1	2
2	11
3	7
4	2
5	271
6	6733
7	41
8	11
9	2
10	3769453
11	77647
12	2
13	541
14	1394161003757
15	13806493
16	5
17	3
18	1778463179021
19	193
20	19
21	17377902756647509
22	398407
23	3
24	389
25	137
26	137867
27	3
28	3
29	160038737
30	739
31	4889866261929241
32	37
33	5
34	48109
35	3190436507

[2, 11, 7, 2, 271, 6733, 41, 11, 2, 3769453, 77647, 2, 541, 1394161003757, 13806493, 5, 3, 1778463179021, 193, 19, 17377902756647509, 398407, 3, 389, 137, 137867, 3, 3, 160038737, 739, 4889866261929241, 37, 5, 48109, 3190436507]

cp's OEIS Frontend

A165768 Smallest prime factor of the semiprime 2^A165767(n)-A165767(n).

Table of values

List of values