A003639 - cp's OEIS frontend

A003639 Number of classes per genus in Q(sqrt -n), n squarefree.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	2
11	1
12	2
13	1
14	1
15	1
16	3
17	3
18	3
19	1
20	3
21	1
22	2
23	1
24	1
25	3
26	2
27	4
28	1
29	1
30	2
31	5
32	1
33	3
34	2
35	1
36	1
37	3
38	3
39	4
40	2
41	2
42	1
43	2
44	1
45	7
46	2
47	5
48	2
49	1
50	5
51	2
52	3
53	1
54	5
55	3
56	6
57	1
58	1
59	4
60	4
61	2
62	7
63	1
64	5
65	1
66	3
67	3
68	3
69	3
70	4
71	4
72	2
73	1
74	3
75	5
76	5
77	1
78	5
79	3
80	1
81	5
82	1
83	7
84	4
85	2
86	3
87	2
88	2
89	5
90	2
91	8
92	7
93	7
94	2
95	2
96	3
97	4
98	5
99	4
100	1
101	1
102	5
103	11
104	3

[1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 3, 3, 3, 1, 3, 1, 2, 1, 1, 3, 2, 4, 1, 1, 2, 5, 1, 3, 2, 1, 1, 3, 3, 4, 2, 2, 1, 2, 1, 7, 2, 5, 2, 1, 5, 2, 3, 1, 5, 3, 6, 1, 1, 4, 4, 2, 7, 1, 5, 1, 3, 3, 3, 3, 4, 4, 2, 1, 3, 5, 5, 1, 5, 3, 1, 5, 1, 7, 4, 2, 3, 2, 2, 5, 2, 8, 7, 7, 2, 2, 3, 4, 5, 4, 1, 1, 5, 11, 3]

cp's OEIS Frontend

A003639 Number of classes per genus in Q(sqrt -n), n squarefree.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	2
11	1
12	2
13	1
14	1
15	1
16	3
17	3
18	3
19	1
20	3
21	1
22	2
23	1
24	1
25	3
26	2
27	4
28	1
29	1
30	2
31	5
32	1
33	3
34	2
35	1
36	1
37	3
38	3
39	4
40	2
41	2
42	1
43	2
44	1
45	7
46	2
47	5
48	2
49	1
50	5
51	2
52	3
53	1
54	5
55	3
56	6
57	1
58	1
59	4
60	4
61	2
62	7
63	1
64	5
65	1
66	3
67	3
68	3
69	3
70	4
71	4
72	2
73	1
74	3
75	5
76	5
77	1
78	5
79	3
80	1
81	5
82	1
83	7
84	4
85	2
86	3
87	2
88	2
89	5
90	2
91	8
92	7
93	7
94	2
95	2
96	3
97	4
98	5
99	4
100	1
101	1
102	5
103	11
104	3

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	2
11	1
12	2
13	1
14	1
15	1
16	3
17	3
18	3
19	1
20	3
21	1
22	2
23	1
24	1
25	3
26	2
27	4
28	1
29	1
30	2
31	5
32	1
33	3
34	2
35	1
36	1
37	3
38	3
39	4
40	2
41	2
42	1
43	2
44	1
45	7
46	2
47	5
48	2
49	1
50	5
51	2
52	3
53	1
54	5
55	3
56	6
57	1
58	1
59	4
60	4
61	2
62	7
63	1
64	5
65	1
66	3
67	3
68	3
69	3
70	4
71	4
72	2
73	1
74	3
75	5
76	5
77	1
78	5
79	3
80	1
81	5
82	1
83	7
84	4
85	2
86	3
87	2
88	2
89	5
90	2
91	8
92	7
93	7
94	2
95	2
96	3
97	4
98	5
99	4
100	1
101	1
102	5
103	11
104	3

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	2
11	1
12	2
13	1
14	1
15	1
16	3
17	3
18	3
19	1
20	3
21	1
22	2
23	1
24	1
25	3
26	2
27	4
28	1
29	1
30	2
31	5
32	1
33	3
34	2
35	1
36	1
37	3
38	3
39	4
40	2
41	2
42	1
43	2
44	1
45	7
46	2
47	5
48	2
49	1
50	5
51	2
52	3
53	1
54	5
55	3
56	6
57	1
58	1
59	4
60	4
61	2
62	7
63	1
64	5
65	1
66	3
67	3
68	3
69	3
70	4
71	4
72	2
73	1
74	3
75	5
76	5
77	1
78	5
79	3
80	1
81	5
82	1
83	7
84	4
85	2
86	3
87	2
88	2
89	5
90	2
91	8
92	7
93	7
94	2
95	2
96	3
97	4
98	5
99	4
100	1
101	1
102	5
103	11
104	3