A080908 - OEIS

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A080908 as a simple table

n	a(n)
0	0
1	1
2	-1
3	1
4	-1
5	0
6	0
7	1
8	0
9	-1
10	1
11	0
12	0
13	1
14	0
15	1
16	0
17	0
18	1
19	0
20	0
21	0
22	1
23	0
24	1
25	-1

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

n	a(n)
0	0
1	1
2	-1
3	1
4	-1
5	0
6	0
7	1
8	0
9	-1
10	1
11	0
12	0
13	1
14	0
15	1
16	0
17	0
18	1
19	0
20	0
21	0
22	1
23	0
24	1
25	-1

n	a(n)
0	0
1	1
2	-1
3	1
4	-1
5	0
6	0
7	1
8	0
9	-1
10	1
11	0
12	0
13	1
14	0
15	1
16	0
17	0
18	1
19	0
20	0
21	0
22	1
23	0
24	1
25	-1

n	a(n)
0	0
1	1
2	-1
3	1
4	-1
5	0
6	0
7	1
8	0
9	-1
10	1
11	0
12	0
13	1
14	0
15	1
16	0
17	0
18	1
19	0
20	0
21	0
22	1
23	0
24	1
25	-1