A014599 - cp's OEIS frontend

A014599 Class numbers h(D) of imaginary quadratic fields with discriminant D=1-4*n.

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

[1, 1, 1, 2, 1, 3, 1, 3, 2, 4, 1, 5, 2, 4, 3, 4, 1, 7, 2, 5, 3, 6, 2, 8, 2, 5, 3, 8, 2, 10, 2, 5, 5, 6, 3, 10, 2, 7, 4, 10, 1, 11, 4, 6, 5, 8, 2, 13, 4, 9, 4, 6, 3, 14, 4, 7, 5, 12, 2, 15, 3, 6, 7, 12, 4, 13, 2, 11, 4, 12, 3, 14, 4, 8, 8, 10, 3, 19, 4, 10, 4, 12, 3, 18, 6, 7, 5, 12, 4, 19]

cp's OEIS Frontend

A014599 Class numbers h(D) of imaginary quadratic fields with discriminant D=1-4*n.

Table of values

List of values

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

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

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