A089451 - cp's OEIS frontend

A089451 a(n) = mu(prime(n)-1), where mu is the Moebius function (A008683).

n	a(n)
1	1
2	-1
3	0
4	1
5	1
6	0
7	0
8	0
9	1
10	0
11	-1
12	0
13	0
14	-1
15	1
16	0
17	1
18	0
19	-1
20	-1
21	0
22	-1
23	1
24	0
25	0
26	0
27	-1
28	1
29	0
30	0
31	0
32	-1
33	0
34	-1
35	0
36	0
37	0
38	0
39	1
40	0
41	1
42	0
43	-1
44	0
45	0
46	0
47	1
48	-1
49	1
50	0
51	0
52	-1
53	0
54	0
55	0
56	1
57	0
58	0
59	0
60	0
61	-1
62	0
63	0
64	-1
65	0
66	0
67	1
68	0
69	1
70	0
71	0
72	1
73	-1
74	0
75	0
76	1
77	0
78	0
79	0
80	0
81	-1
82	0
83	-1
84	0
85	-1
86	-1
87	0
88	0
89	0
90	1
91	1
92	1
93	0
94	0
95	-1
96	1
97	0
98	0
99	0
100	0
101	1
102	0
103	1
104	0
105	1
106	0
107	1
108	0
109	-1
110	0
111	-1
112	0
113	0
114	-1
115	0
116	0

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

cp's OEIS Frontend

A089451 a(n) = mu(prime(n)-1), where mu is the Moebius function (A008683).

Table of values

List of values

n	a(n)
1	1
2	-1
3	0
4	1
5	1
6	0
7	0
8	0
9	1
10	0
11	-1
12	0
13	0
14	-1
15	1
16	0
17	1
18	0
19	-1
20	-1
21	0
22	-1
23	1
24	0
25	0
26	0
27	-1
28	1
29	0
30	0
31	0
32	-1
33	0
34	-1
35	0
36	0
37	0
38	0
39	1
40	0
41	1
42	0
43	-1
44	0
45	0
46	0
47	1
48	-1
49	1
50	0
51	0
52	-1
53	0
54	0
55	0
56	1
57	0
58	0
59	0
60	0
61	-1
62	0
63	0
64	-1
65	0
66	0
67	1
68	0
69	1
70	0
71	0
72	1
73	-1
74	0
75	0
76	1
77	0
78	0
79	0
80	0
81	-1
82	0
83	-1
84	0
85	-1
86	-1
87	0
88	0
89	0
90	1
91	1
92	1
93	0
94	0
95	-1
96	1
97	0
98	0
99	0
100	0
101	1
102	0
103	1
104	0
105	1
106	0
107	1
108	0
109	-1
110	0
111	-1
112	0
113	0
114	-1
115	0
116	0

n	a(n)
1	1
2	-1
3	0
4	1
5	1
6	0
7	0
8	0
9	1
10	0
11	-1
12	0
13	0
14	-1
15	1
16	0
17	1
18	0
19	-1
20	-1
21	0
22	-1
23	1
24	0
25	0
26	0
27	-1
28	1
29	0
30	0
31	0
32	-1
33	0
34	-1
35	0
36	0
37	0
38	0
39	1
40	0
41	1
42	0
43	-1
44	0
45	0
46	0
47	1
48	-1
49	1
50	0
51	0
52	-1
53	0
54	0
55	0
56	1
57	0
58	0
59	0
60	0
61	-1
62	0
63	0
64	-1
65	0
66	0
67	1
68	0
69	1
70	0
71	0
72	1
73	-1
74	0
75	0
76	1
77	0
78	0
79	0
80	0
81	-1
82	0
83	-1
84	0
85	-1
86	-1
87	0
88	0
89	0
90	1
91	1
92	1
93	0
94	0
95	-1
96	1
97	0
98	0
99	0
100	0
101	1
102	0
103	1
104	0
105	1
106	0
107	1
108	0
109	-1
110	0
111	-1
112	0
113	0
114	-1
115	0
116	0

n	a(n)
1	1
2	-1
3	0
4	1
5	1
6	0
7	0
8	0
9	1
10	0
11	-1
12	0
13	0
14	-1
15	1
16	0
17	1
18	0
19	-1
20	-1
21	0
22	-1
23	1
24	0
25	0
26	0
27	-1
28	1
29	0
30	0
31	0
32	-1
33	0
34	-1
35	0
36	0
37	0
38	0
39	1
40	0
41	1
42	0
43	-1
44	0
45	0
46	0
47	1
48	-1
49	1
50	0
51	0
52	-1
53	0
54	0
55	0
56	1
57	0
58	0
59	0
60	0
61	-1
62	0
63	0
64	-1
65	0
66	0
67	1
68	0
69	1
70	0
71	0
72	1
73	-1
74	0
75	0
76	1
77	0
78	0
79	0
80	0
81	-1
82	0
83	-1
84	0
85	-1
86	-1
87	0
88	0
89	0
90	1
91	1
92	1
93	0
94	0
95	-1
96	1
97	0
98	0
99	0
100	0
101	1
102	0
103	1
104	0
105	1
106	0
107	1
108	0
109	-1
110	0
111	-1
112	0
113	0
114	-1
115	0
116	0