A363620 - cp's OEIS frontend

A363620 Reverse-weighted alternating sum of the multiset of prime indices of n.

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

[0, 1, 2, 1, 3, 0, 4, 2, 2, -1, 5, 3, 6, -2, 1, 2, 7, 1, 8, 4, 0, -3, 9, 1, 3, -4, 4, 5, 10, 2, 11, 3, -1, -5, 2, 3, 12, -6, -2, 0, 13, 3, 14, 6, 5, -7, 15, 4, 4, 0, -3, 7, 16, 0, 1, -1, -4, -8, 17, 2, 18, -9, 6, 3, 0, 4, 19, 8, -5, 1, 20, 2, 21, -10, 3, 9, 3]

cp's OEIS Frontend

A363620 Reverse-weighted alternating sum of the multiset of prime indices of n.

Table of values

List of values

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

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

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