A051994 - cp's OEIS frontend

A051994 Consider real quadratic fields of ERD-type with class groups of exponent 2 and discriminants of the form D = r^2*k^2+2k, k odd; sequence gives values of r.

n	a(n)
1	6
2	7
3	8
4	3
5	10
6	11
7	11
8	4
9	12
10	14
11	3
12	5
13	16
14	17
15	6
16	6
17	4
18	20
19	4
20	7
21	7
22	3
23	22
24	23
25	8
26	5
27	25
28	25
29	5
30	26
31	4
32	28
33	4
34	29
35	6
36	30
37	32
38	11
39	7
40	36
41	12
42	13
43	3
44	8
45	14
46	44
47	3
48	9
49	16
50	7
51	7
52	17
53	17
54	4
55	18
56	5
57	19
58	4
59	61
60	62
61	3
62	2
63	5
64	26
65	27
66	17
67	20
68	6
69	16
70	39
71	28
72	146
73	30
74	23
75	61
76	22

[6, 7, 8, 3, 10, 11, 11, 4, 12, 14, 3, 5, 16, 17, 6, 6, 4, 20, 4, 7, 7, 3, 22, 23, 8, 5, 25, 25, 5, 26, 4, 28, 4, 29, 6, 30, 32, 11, 7, 36, 12, 13, 3, 8, 14, 44, 3, 9, 16, 7, 7, 17, 17, 4, 18, 5, 19, 4, 61, 62, 3, 2, 5, 26, 27, 17, 20, 6, 16, 39, 28, 146, 30, 23, 61, 22]

cp's OEIS Frontend

A051994 Consider real quadratic fields of ERD-type with class groups of exponent 2 and discriminants of the form D = r^2*k^2+2k, k odd; sequence gives values of r.

Table of values

List of values

n	a(n)
1	6
2	7
3	8
4	3
5	10
6	11
7	11
8	4
9	12
10	14
11	3
12	5
13	16
14	17
15	6
16	6
17	4
18	20
19	4
20	7
21	7
22	3
23	22
24	23
25	8
26	5
27	25
28	25
29	5
30	26
31	4
32	28
33	4
34	29
35	6
36	30
37	32
38	11
39	7
40	36
41	12
42	13
43	3
44	8
45	14
46	44
47	3
48	9
49	16
50	7
51	7
52	17
53	17
54	4
55	18
56	5
57	19
58	4
59	61
60	62
61	3
62	2
63	5
64	26
65	27
66	17
67	20
68	6
69	16
70	39
71	28
72	146
73	30
74	23
75	61
76	22

n	a(n)
1	6
2	7
3	8
4	3
5	10
6	11
7	11
8	4
9	12
10	14
11	3
12	5
13	16
14	17
15	6
16	6
17	4
18	20
19	4
20	7
21	7
22	3
23	22
24	23
25	8
26	5
27	25
28	25
29	5
30	26
31	4
32	28
33	4
34	29
35	6
36	30
37	32
38	11
39	7
40	36
41	12
42	13
43	3
44	8
45	14
46	44
47	3
48	9
49	16
50	7
51	7
52	17
53	17
54	4
55	18
56	5
57	19
58	4
59	61
60	62
61	3
62	2
63	5
64	26
65	27
66	17
67	20
68	6
69	16
70	39
71	28
72	146
73	30
74	23
75	61
76	22

n	a(n)
1	6
2	7
3	8
4	3
5	10
6	11
7	11
8	4
9	12
10	14
11	3
12	5
13	16
14	17
15	6
16	6
17	4
18	20
19	4
20	7
21	7
22	3
23	22
24	23
25	8
26	5
27	25
28	25
29	5
30	26
31	4
32	28
33	4
34	29
35	6
36	30
37	32
38	11
39	7
40	36
41	12
42	13
43	3
44	8
45	14
46	44
47	3
48	9
49	16
50	7
51	7
52	17
53	17
54	4
55	18
56	5
57	19
58	4
59	61
60	62
61	3
62	2
63	5
64	26
65	27
66	17
67	20
68	6
69	16
70	39
71	28
72	146
73	30
74	23
75	61
76	22