A102270 - cp's OEIS frontend

A102270 2-class number of Q(sqrt(-21p)) as p runs through primes in A102269.

n	a(n)
1	16
2	8
3	8
4	8
5	16
6	8
7	16
8	16
9	16
10	8
11	16
12	32
13	8
14	8
15	8
16	8
17	32
18	8
19	16
20	64
21	32
22	8
23	32
24	8
25	8
26	128
27	32
28	32
29	32
30	16
31	8
32	8
33	8
34	16
35	16
36	8
37	8
38	8
39	128
40	16
41	8
42	8
43	16
44	32
45	8
46	16
47	32
48	8
49	8
50	8
51	128
52	8
53	8
54	8
55	16
56	8
57	64
58	8
59	8
60	8
61	16
62	8
63	16
64	16
65	16
66	8
67	8
68	16
69	32
70	16
71	8
72	8
73	8
74	64
75	32
76	64
77	16
78	64
79	8
80	16
81	32

[16, 8, 8, 8, 16, 8, 16, 16, 16, 8, 16, 32, 8, 8, 8, 8, 32, 8, 16, 64, 32, 8, 32, 8, 8, 128, 32, 32, 32, 16, 8, 8, 8, 16, 16, 8, 8, 8, 128, 16, 8, 8, 16, 32, 8, 16, 32, 8, 8, 8, 128, 8, 8, 8, 16, 8, 64, 8, 8, 8, 16, 8, 16, 16, 16, 8, 8, 16, 32, 16, 8, 8, 8, 64, 32, 64, 16, 64, 8, 16, 32]

cp's OEIS Frontend

A102270 2-class number of Q(sqrt(-21p)) as p runs through primes in A102269.

Table of values

List of values

n	a(n)
1	16
2	8
3	8
4	8
5	16
6	8
7	16
8	16
9	16
10	8
11	16
12	32
13	8
14	8
15	8
16	8
17	32
18	8
19	16
20	64
21	32
22	8
23	32
24	8
25	8
26	128
27	32
28	32
29	32
30	16
31	8
32	8
33	8
34	16
35	16
36	8
37	8
38	8
39	128
40	16
41	8
42	8
43	16
44	32
45	8
46	16
47	32
48	8
49	8
50	8
51	128
52	8
53	8
54	8
55	16
56	8
57	64
58	8
59	8
60	8
61	16
62	8
63	16
64	16
65	16
66	8
67	8
68	16
69	32
70	16
71	8
72	8
73	8
74	64
75	32
76	64
77	16
78	64
79	8
80	16
81	32

n	a(n)
1	16
2	8
3	8
4	8
5	16
6	8
7	16
8	16
9	16
10	8
11	16
12	32
13	8
14	8
15	8
16	8
17	32
18	8
19	16
20	64
21	32
22	8
23	32
24	8
25	8
26	128
27	32
28	32
29	32
30	16
31	8
32	8
33	8
34	16
35	16
36	8
37	8
38	8
39	128
40	16
41	8
42	8
43	16
44	32
45	8
46	16
47	32
48	8
49	8
50	8
51	128
52	8
53	8
54	8
55	16
56	8
57	64
58	8
59	8
60	8
61	16
62	8
63	16
64	16
65	16
66	8
67	8
68	16
69	32
70	16
71	8
72	8
73	8
74	64
75	32
76	64
77	16
78	64
79	8
80	16
81	32

n	a(n)
1	16
2	8
3	8
4	8
5	16
6	8
7	16
8	16
9	16
10	8
11	16
12	32
13	8
14	8
15	8
16	8
17	32
18	8
19	16
20	64
21	32
22	8
23	32
24	8
25	8
26	128
27	32
28	32
29	32
30	16
31	8
32	8
33	8
34	16
35	16
36	8
37	8
38	8
39	128
40	16
41	8
42	8
43	16
44	32
45	8
46	16
47	32
48	8
49	8
50	8
51	128
52	8
53	8
54	8
55	16
56	8
57	64
58	8
59	8
60	8
61	16
62	8
63	16
64	16
65	16
66	8
67	8
68	16
69	32
70	16
71	8
72	8
73	8
74	64
75	32
76	64
77	16
78	64
79	8
80	16
81	32