A091219 - cp's OEIS frontend

A091219 Moebius-analog for the domain GF(2)[X]: a(n)=0 if A091221(n)!=A091222(n) (i.e., if the polynomial is not squarefree), otherwise (-1)^A091222(n).

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

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

cp's OEIS Frontend

A091219 Moebius-analog for the domain GF(2)[X]: a(n)=0 if A091221(n)!=A091222(n) (i.e., if the polynomial is not squarefree), otherwise (-1)^A091222(n).

Table of values

List of values

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

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

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