A369454 - cp's OEIS frontend

A369454 Dirichlet inverse of A369257, where A369257 is the number of divisors of n that are odd numbers with an even number of prime factors with multiplicity.

n	a(n)
1	1
2	-1
3	-1
4	0
5	-1
6	1
7	-1
8	0
9	-1
10	1
11	-1
12	0
13	-1
14	1
15	0
16	0
17	-1
18	1
19	-1
20	0
21	0
22	1
23	-1
24	0
25	-1
26	1
27	1
28	0
29	-1
30	0
31	-1
32	0
33	0
34	1
35	0
36	0
37	-1
38	1
39	0
40	0
41	-1
42	0
43	-1
44	0
45	2
46	1
47	-1
48	0
49	-1
50	1
51	0
52	0
53	-1
54	-1
55	0
56	0
57	0
58	1
59	-1
60	0
61	-1
62	1
63	2
64	0
65	0
66	0
67	-1
68	0
69	0
70	0
71	-1
72	0
73	-1
74	1
75	2
76	0
77	0
78	0
79	-1
80	0
81	0
82	1
83	-1
84	0
85	0
86	1
87	0
88	0
89	-1
90	-2
91	0
92	0
93	0
94	1
95	0
96	0
97	-1
98	1
99	2
100	0

[1, -1, -1, 0, -1, 1, -1, 0, -1, 1, -1, 0, -1, 1, 0, 0, -1, 1, -1, 0, 0, 1, -1, 0, -1, 1, 1, 0, -1, 0, -1, 0, 0, 1, 0, 0, -1, 1, 0, 0, -1, 0, -1, 0, 2, 1, -1, 0, -1, 1, 0, 0, -1, -1, 0, 0, 0, 1, -1, 0, -1, 1, 2, 0, 0, 0, -1, 0, 0, 0, -1, 0, -1, 1, 2, 0, 0, 0, -1, 0, 0, 1, -1, 0, 0, 1, 0, 0, -1, -2, 0, 0, 0, 1, 0, 0, -1, 1, 2, 0]

cp's OEIS Frontend

A369454 Dirichlet inverse of A369257, where A369257 is the number of divisors of n that are odd numbers with an even number of prime factors with multiplicity.

Table of values

List of values

n	a(n)
1	1
2	-1
3	-1
4	0
5	-1
6	1
7	-1
8	0
9	-1
10	1
11	-1
12	0
13	-1
14	1
15	0
16	0
17	-1
18	1
19	-1
20	0
21	0
22	1
23	-1
24	0
25	-1
26	1
27	1
28	0
29	-1
30	0
31	-1
32	0
33	0
34	1
35	0
36	0
37	-1
38	1
39	0
40	0
41	-1
42	0
43	-1
44	0
45	2
46	1
47	-1
48	0
49	-1
50	1
51	0
52	0
53	-1
54	-1
55	0
56	0
57	0
58	1
59	-1
60	0
61	-1
62	1
63	2
64	0
65	0
66	0
67	-1
68	0
69	0
70	0
71	-1
72	0
73	-1
74	1
75	2
76	0
77	0
78	0
79	-1
80	0
81	0
82	1
83	-1
84	0
85	0
86	1
87	0
88	0
89	-1
90	-2
91	0
92	0
93	0
94	1
95	0
96	0
97	-1
98	1
99	2
100	0

n	a(n)
1	1
2	-1
3	-1
4	0
5	-1
6	1
7	-1
8	0
9	-1
10	1
11	-1
12	0
13	-1
14	1
15	0
16	0
17	-1
18	1
19	-1
20	0
21	0
22	1
23	-1
24	0
25	-1
26	1
27	1
28	0
29	-1
30	0
31	-1
32	0
33	0
34	1
35	0
36	0
37	-1
38	1
39	0
40	0
41	-1
42	0
43	-1
44	0
45	2
46	1
47	-1
48	0
49	-1
50	1
51	0
52	0
53	-1
54	-1
55	0
56	0
57	0
58	1
59	-1
60	0
61	-1
62	1
63	2
64	0
65	0
66	0
67	-1
68	0
69	0
70	0
71	-1
72	0
73	-1
74	1
75	2
76	0
77	0
78	0
79	-1
80	0
81	0
82	1
83	-1
84	0
85	0
86	1
87	0
88	0
89	-1
90	-2
91	0
92	0
93	0
94	1
95	0
96	0
97	-1
98	1
99	2
100	0

n	a(n)
1	1
2	-1
3	-1
4	0
5	-1
6	1
7	-1
8	0
9	-1
10	1
11	-1
12	0
13	-1
14	1
15	0
16	0
17	-1
18	1
19	-1
20	0
21	0
22	1
23	-1
24	0
25	-1
26	1
27	1
28	0
29	-1
30	0
31	-1
32	0
33	0
34	1
35	0
36	0
37	-1
38	1
39	0
40	0
41	-1
42	0
43	-1
44	0
45	2
46	1
47	-1
48	0
49	-1
50	1
51	0
52	0
53	-1
54	-1
55	0
56	0
57	0
58	1
59	-1
60	0
61	-1
62	1
63	2
64	0
65	0
66	0
67	-1
68	0
69	0
70	0
71	-1
72	0
73	-1
74	1
75	2
76	0
77	0
78	0
79	-1
80	0
81	0
82	1
83	-1
84	0
85	0
86	1
87	0
88	0
89	-1
90	-2
91	0
92	0
93	0
94	1
95	0
96	0
97	-1
98	1
99	2
100	0