A321865 - cp's OEIS frontend

A321865 a(n) = A321860(prime(n)).

n	a(n)
1	1
2	0
3	-1
4	0
5	0
6	1
7	2
8	3
9	2
10	3
11	2
12	1
13	2
14	3
15	2
16	1
17	0
18	1
19	0
20	-1
21	0
22	1
23	2
24	1
25	0
26	1
27	0
28	1
29	2
30	1
31	2
32	3
33	2
34	3
35	4
36	5
37	4
38	3
39	4
40	5
41	4
42	3
43	2
44	3
45	4
46	3
47	4
48	3
49	4
50	3
51	4
52	5
53	6
54	5
55	4
56	5
57	4
58	5
59	6
60	7
61	8
62	9
63	10
64	9
65	8
66	7
67	6
68	7
69	8
70	9
71	8
72	9
73	8
74	9
75	8
76	7
77	6
78	5
79	4
80	5
81	4
82	3
83	4
84	3
85	4
86	3
87	2

[1, 0, -1, 0, 0, 1, 2, 3, 2, 3, 2, 1, 2, 3, 2, 1, 0, 1, 0, -1, 0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 2, 3, 2, 3, 4, 5, 4, 3, 4, 5, 4, 3, 2, 3, 4, 3, 4, 3, 4, 3, 4, 5, 6, 5, 4, 5, 4, 5, 6, 7, 8, 9, 10, 9, 8, 7, 6, 7, 8, 9, 8, 9, 8, 9, 8, 7, 6, 5, 4, 5, 4, 3, 4, 3, 4, 3, 2]

cp's OEIS Frontend

A321865 a(n) = A321860(prime(n)).

Table of values

List of values

n	a(n)
1	1
2	0
3	-1
4	0
5	0
6	1
7	2
8	3
9	2
10	3
11	2
12	1
13	2
14	3
15	2
16	1
17	0
18	1
19	0
20	-1
21	0
22	1
23	2
24	1
25	0
26	1
27	0
28	1
29	2
30	1
31	2
32	3
33	2
34	3
35	4
36	5
37	4
38	3
39	4
40	5
41	4
42	3
43	2
44	3
45	4
46	3
47	4
48	3
49	4
50	3
51	4
52	5
53	6
54	5
55	4
56	5
57	4
58	5
59	6
60	7
61	8
62	9
63	10
64	9
65	8
66	7
67	6
68	7
69	8
70	9
71	8
72	9
73	8
74	9
75	8
76	7
77	6
78	5
79	4
80	5
81	4
82	3
83	4
84	3
85	4
86	3
87	2

n	a(n)
1	1
2	0
3	-1
4	0
5	0
6	1
7	2
8	3
9	2
10	3
11	2
12	1
13	2
14	3
15	2
16	1
17	0
18	1
19	0
20	-1
21	0
22	1
23	2
24	1
25	0
26	1
27	0
28	1
29	2
30	1
31	2
32	3
33	2
34	3
35	4
36	5
37	4
38	3
39	4
40	5
41	4
42	3
43	2
44	3
45	4
46	3
47	4
48	3
49	4
50	3
51	4
52	5
53	6
54	5
55	4
56	5
57	4
58	5
59	6
60	7
61	8
62	9
63	10
64	9
65	8
66	7
67	6
68	7
69	8
70	9
71	8
72	9
73	8
74	9
75	8
76	7
77	6
78	5
79	4
80	5
81	4
82	3
83	4
84	3
85	4
86	3
87	2

n	a(n)
1	1
2	0
3	-1
4	0
5	0
6	1
7	2
8	3
9	2
10	3
11	2
12	1
13	2
14	3
15	2
16	1
17	0
18	1
19	0
20	-1
21	0
22	1
23	2
24	1
25	0
26	1
27	0
28	1
29	2
30	1
31	2
32	3
33	2
34	3
35	4
36	5
37	4
38	3
39	4
40	5
41	4
42	3
43	2
44	3
45	4
46	3
47	4
48	3
49	4
50	3
51	4
52	5
53	6
54	5
55	4
56	5
57	4
58	5
59	6
60	7
61	8
62	9
63	10
64	9
65	8
66	7
67	6
68	7
69	8
70	9
71	8
72	9
73	8
74	9
75	8
76	7
77	6
78	5
79	4
80	5
81	4
82	3
83	4
84	3
85	4
86	3
87	2