A271230 - cp's OEIS frontend

A271230 P-defects p - N(p) of the congruence y^2 == x^3 + x^2 + x (mod p) for primes p, where N(p) is the number of solutions.

n	a(n)
1	0
2	1
3	-2
4	0
5	-4
6	-2
7	2
8	4
9	8
10	6
11	-8
12	6
13	-6
14	-4
15	0
16	-2
17	-4
18	-2
19	4
20	-8
21	10
22	8
23	4
24	-6
25	2
26	-18
27	-16
28	12
29	-2
30	18
31	8
32	4
33	-6
34	12
35	14
36	16
37	-2
38	-12
39	-24
40	6
41	-12
42	6
43	0
44	2
45	-18
46	-16
47	20
48	8
49	-12
50	22
51	10
52	16
53	18
54	-20
55	2
56	8
57	-10
58	-8
59	-26
60	26

[0, 1, -2, 0, -4, -2, 2, 4, 8, 6, -8, 6, -6, -4, 0, -2, -4, -2, 4, -8, 10, 8, 4, -6, 2, -18, -16, 12, -2, 18, 8, 4, -6, 12, 14, 16, -2, -12, -24, 6, -12, 6, 0, 2, -18, -16, 20, 8, -12, 22, 10, 16, 18, -20, 2, 8, -10, -8, -26, 26]

cp's OEIS Frontend

A271230 P-defects p - N(p) of the congruence y^2 == x^3 + x^2 + x (mod p) for primes p, where N(p) is the number of solutions.

Table of values

List of values

n	a(n)
1	0
2	1
3	-2
4	0
5	-4
6	-2
7	2
8	4
9	8
10	6
11	-8
12	6
13	-6
14	-4
15	0
16	-2
17	-4
18	-2
19	4
20	-8
21	10
22	8
23	4
24	-6
25	2
26	-18
27	-16
28	12
29	-2
30	18
31	8
32	4
33	-6
34	12
35	14
36	16
37	-2
38	-12
39	-24
40	6
41	-12
42	6
43	0
44	2
45	-18
46	-16
47	20
48	8
49	-12
50	22
51	10
52	16
53	18
54	-20
55	2
56	8
57	-10
58	-8
59	-26
60	26

n	a(n)
1	0
2	1
3	-2
4	0
5	-4
6	-2
7	2
8	4
9	8
10	6
11	-8
12	6
13	-6
14	-4
15	0
16	-2
17	-4
18	-2
19	4
20	-8
21	10
22	8
23	4
24	-6
25	2
26	-18
27	-16
28	12
29	-2
30	18
31	8
32	4
33	-6
34	12
35	14
36	16
37	-2
38	-12
39	-24
40	6
41	-12
42	6
43	0
44	2
45	-18
46	-16
47	20
48	8
49	-12
50	22
51	10
52	16
53	18
54	-20
55	2
56	8
57	-10
58	-8
59	-26
60	26

n	a(n)
1	0
2	1
3	-2
4	0
5	-4
6	-2
7	2
8	4
9	8
10	6
11	-8
12	6
13	-6
14	-4
15	0
16	-2
17	-4
18	-2
19	4
20	-8
21	10
22	8
23	4
24	-6
25	2
26	-18
27	-16
28	12
29	-2
30	18
31	8
32	4
33	-6
34	12
35	14
36	16
37	-2
38	-12
39	-24
40	6
41	-12
42	6
43	0
44	2
45	-18
46	-16
47	20
48	8
49	-12
50	22
51	10
52	16
53	18
54	-20
55	2
56	8
57	-10
58	-8
59	-26
60	26