A059959 - cp's OEIS frontend

A059959 Distance of 2^n from its nearest prime neighbor and in case of a tie, choose the smaller.

n	a(n)
0	-1
1	0
2	1
3	1
4	-1
5	1
6	3
7	1
8	-1
9	3
10	3
11	-5
12	3
13	1
14	3
15	-3
16	-1
17	1
18	-3
19	1
20	3
21	9
22	3
23	-9
24	3
25	-35
26	5
27	-29
28	-3
29	3
30	-3
31	1
32	5
33	9
34	-25
35	31
36	5
37	-9
38	-7
39	7
40	-15
41	21
42	11
43	-29
44	-7
45	55
46	-15
47	-5
48	-21
49	-69
50	27
51	-21
52	-21
53	-5
54	33
55	-3
56	5
57	-9
58	27
59	55
60	-33
61	1
62	57
63	25
64	-13
65	49
66	5
67	-3
68	23
69	19
70	-25
71	-11
72	-15
73	-29
74	35
75	-33
76	15
77	-11
78	-7
79	-23
80	-13
81	-17
82	-9
83	55
84	-3
85	19

[-1, 0, 1, 1, -1, 1, 3, 1, -1, 3, 3, -5, 3, 1, 3, -3, -1, 1, -3, 1, 3, 9, 3, -9, 3, -35, 5, -29, -3, 3, -3, 1, 5, 9, -25, 31, 5, -9, -7, 7, -15, 21, 11, -29, -7, 55, -15, -5, -21, -69, 27, -21, -21, -5, 33, -3, 5, -9, 27, 55, -33, 1, 57, 25, -13, 49, 5, -3, 23, 19, -25, -11, -15, -29, 35, -33, 15, -11, -7, -23, -13, -17, -9, 55, -3, 19]

cp's OEIS Frontend

A059959 Distance of 2^n from its nearest prime neighbor and in case of a tie, choose the smaller.

Table of values

List of values

n	a(n)
0	-1
1	0
2	1
3	1
4	-1
5	1
6	3
7	1
8	-1
9	3
10	3
11	-5
12	3
13	1
14	3
15	-3
16	-1
17	1
18	-3
19	1
20	3
21	9
22	3
23	-9
24	3
25	-35
26	5
27	-29
28	-3
29	3
30	-3
31	1
32	5
33	9
34	-25
35	31
36	5
37	-9
38	-7
39	7
40	-15
41	21
42	11
43	-29
44	-7
45	55
46	-15
47	-5
48	-21
49	-69
50	27
51	-21
52	-21
53	-5
54	33
55	-3
56	5
57	-9
58	27
59	55
60	-33
61	1
62	57
63	25
64	-13
65	49
66	5
67	-3
68	23
69	19
70	-25
71	-11
72	-15
73	-29
74	35
75	-33
76	15
77	-11
78	-7
79	-23
80	-13
81	-17
82	-9
83	55
84	-3
85	19

n	a(n)
0	-1
1	0
2	1
3	1
4	-1
5	1
6	3
7	1
8	-1
9	3
10	3
11	-5
12	3
13	1
14	3
15	-3
16	-1
17	1
18	-3
19	1
20	3
21	9
22	3
23	-9
24	3
25	-35
26	5
27	-29
28	-3
29	3
30	-3
31	1
32	5
33	9
34	-25
35	31
36	5
37	-9
38	-7
39	7
40	-15
41	21
42	11
43	-29
44	-7
45	55
46	-15
47	-5
48	-21
49	-69
50	27
51	-21
52	-21
53	-5
54	33
55	-3
56	5
57	-9
58	27
59	55
60	-33
61	1
62	57
63	25
64	-13
65	49
66	5
67	-3
68	23
69	19
70	-25
71	-11
72	-15
73	-29
74	35
75	-33
76	15
77	-11
78	-7
79	-23
80	-13
81	-17
82	-9
83	55
84	-3
85	19

n	a(n)
0	-1
1	0
2	1
3	1
4	-1
5	1
6	3
7	1
8	-1
9	3
10	3
11	-5
12	3
13	1
14	3
15	-3
16	-1
17	1
18	-3
19	1
20	3
21	9
22	3
23	-9
24	3
25	-35
26	5
27	-29
28	-3
29	3
30	-3
31	1
32	5
33	9
34	-25
35	31
36	5
37	-9
38	-7
39	7
40	-15
41	21
42	11
43	-29
44	-7
45	55
46	-15
47	-5
48	-21
49	-69
50	27
51	-21
52	-21
53	-5
54	33
55	-3
56	5
57	-9
58	27
59	55
60	-33
61	1
62	57
63	25
64	-13
65	49
66	5
67	-3
68	23
69	19
70	-25
71	-11
72	-15
73	-29
74	35
75	-33
76	15
77	-11
78	-7
79	-23
80	-13
81	-17
82	-9
83	55
84	-3
85	19