A082174 - cp's OEIS frontend

A082174 Number of primitive reduced indefinite quadratic forms over the integers in two variables with discriminants D(n)=A079896(n).

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

[2, 2, 4, 2, 6, 2, 4, 4, 8, 2, 4, 8, 6, 8, 10, 4, 4, 4, 10, 2, 8, 12, 8, 6, 12, 2, 8, 4, 18, 12, 4, 4, 12, 8, 12, 14, 8, 4, 12, 18, 6, 8, 20, 4, 14, 8, 14, 10, 4, 12, 16, 2, 8, 20, 8, 8, 20, 14, 8, 8, 28, 14, 10, 4, 16, 16, 10, 12, 20, 6, 12, 8, 20, 2, 16, 24, 12, 10, 24, 16, 8, 8, 8, 30]

cp's OEIS Frontend

A082174 Number of primitive reduced indefinite quadratic forms over the integers in two variables with discriminants D(n)=A079896(n).

Table of values

List of values

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

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

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