A340707 - cp's OEIS frontend

A340707 a(n) = (prevprime(2^n) + nextprime(2^n))/2 - 2^n where prevprime(n) = A151799(n) and nextprime(n) = A151800(n).

n	a(n)
2	0
3	1
4	-1
5	2
6	0
7	1
8	-2
9	3
10	2
11	-2
12	0
13	8
14	12
15	-8
16	-7
17	14
18	-1
19	10
20	2
21	4
22	6
23	-3
24	20
25	-2
26	5
27	-5
28	-27
29	4
30	-16
31	5
32	5
33	4
34	-8
35	11
36	13
37	-8
38	-19
39	8
40	-36
41	3
42	2
43	-14
44	-5
45	2
46	-3
47	-55
48	-19
49	-6
50	14
51	-54
52	-13
53	-53
54	63
55	-26
56	38
57	-2
58	21
59	38
60	-30
61	7
62	39
63	2
64	-23
65	41
66	2
67	-8
68	5
69	5
70	-5
71	-110

[0, 1, -1, 2, 0, 1, -2, 3, 2, -2, 0, 8, 12, -8, -7, 14, -1, 10, 2, 4, 6, -3, 20, -2, 5, -5, -27, 4, -16, 5, 5, 4, -8, 11, 13, -8, -19, 8, -36, 3, 2, -14, -5, 2, -3, -55, -19, -6, 14, -54, -13, -53, 63, -26, 38, -2, 21, 38, -30, 7, 39, 2, -23, 41, 2, -8, 5, 5, -5, -110]

cp's OEIS Frontend

A340707 a(n) = (prevprime(2^n) + nextprime(2^n))/2 - 2^n where prevprime(n) = A151799(n) and nextprime(n) = A151800(n).

Table of values

List of values