A349388 - cp's OEIS frontend

A349388 Dirichlet convolution of A000027 with A346234 (Dirichlet inverse of A003961), where A003961 is fully multiplicative with a(p) = nextprime(p).

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

[1, -1, -2, -2, -2, 2, -4, -4, -6, 2, -2, 4, -4, 4, 4, -8, -2, 6, -4, 4, 8, 2, -6, 8, -10, 4, -18, 8, -2, -4, -6, -16, 4, 2, 8, 12, -4, 4, 8, 8, -2, -8, -4, 4, 12, 6, -6, 16, -28, 10, 4, 8, -6, 18, 4, 16, 8, 2, -2, -8, -6, 6, 24, -32, 8, -4, -4, 4, 12, -8, -2, 24, -6, 4, 20, 8, 8, -8, -4, 16, -54, 2, -6, -16, 4, 4, 4]

cp's OEIS Frontend

A349388 Dirichlet convolution of A000027 with A346234 (Dirichlet inverse of A003961), where A003961 is fully multiplicative with a(p) = nextprime(p).

Table of values

List of values

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

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

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