A097916 - cp's OEIS frontend

A097916 Numerator of 2*zeta_K(-1) where K is the totally real field Q(sqrt(n)), as n runs through the squarefree numbers.

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	7
7	7
8	1
9	10
10	4
11	2
12	19
13	2
14	23
15	20
16	25
17	1
18	34
19	40
20	2
21	46
22	38
23	5
24	41
25	52
26	8
27	18
28	21
29	74
30	56
31	26
32	7
33	92
34	14
35	33
36	85
37	11
38	28
39	16
40	112
41	41
42	4
43	134
44	116
45	22
46	41
47	4
48	46
49	56
50	54
51	43
52	6
53	155
54	52
55	26
56	206
57	6
58	212
59	172
60	34
61	19
62	206
63	76
64	12
65	87
66	197
67	9
68	206
69	244
70	12
71	88
72	278
73	277
74	248

[1, 1, 1, 1, 4, 7, 7, 1, 10, 4, 2, 19, 2, 23, 20, 25, 1, 34, 40, 2, 46, 38, 5, 41, 52, 8, 18, 21, 74, 56, 26, 7, 92, 14, 33, 85, 11, 28, 16, 112, 41, 4, 134, 116, 22, 41, 4, 46, 56, 54, 43, 6, 155, 52, 26, 206, 6, 212, 172, 34, 19, 206, 76, 12, 87, 197, 9, 206, 244, 12, 88, 278, 277, 248]

cp's OEIS Frontend

A097916 Numerator of 2*zeta_K(-1) where K is the totally real field Q(sqrt(n)), as n runs through the squarefree numbers.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	7
7	7
8	1
9	10
10	4
11	2
12	19
13	2
14	23
15	20
16	25
17	1
18	34
19	40
20	2
21	46
22	38
23	5
24	41
25	52
26	8
27	18
28	21
29	74
30	56
31	26
32	7
33	92
34	14
35	33
36	85
37	11
38	28
39	16
40	112
41	41
42	4
43	134
44	116
45	22
46	41
47	4
48	46
49	56
50	54
51	43
52	6
53	155
54	52
55	26
56	206
57	6
58	212
59	172
60	34
61	19
62	206
63	76
64	12
65	87
66	197
67	9
68	206
69	244
70	12
71	88
72	278
73	277
74	248

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	7
7	7
8	1
9	10
10	4
11	2
12	19
13	2
14	23
15	20
16	25
17	1
18	34
19	40
20	2
21	46
22	38
23	5
24	41
25	52
26	8
27	18
28	21
29	74
30	56
31	26
32	7
33	92
34	14
35	33
36	85
37	11
38	28
39	16
40	112
41	41
42	4
43	134
44	116
45	22
46	41
47	4
48	46
49	56
50	54
51	43
52	6
53	155
54	52
55	26
56	206
57	6
58	212
59	172
60	34
61	19
62	206
63	76
64	12
65	87
66	197
67	9
68	206
69	244
70	12
71	88
72	278
73	277
74	248

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	7
7	7
8	1
9	10
10	4
11	2
12	19
13	2
14	23
15	20
16	25
17	1
18	34
19	40
20	2
21	46
22	38
23	5
24	41
25	52
26	8
27	18
28	21
29	74
30	56
31	26
32	7
33	92
34	14
35	33
36	85
37	11
38	28
39	16
40	112
41	41
42	4
43	134
44	116
45	22
46	41
47	4
48	46
49	56
50	54
51	43
52	6
53	155
54	52
55	26
56	206
57	6
58	212
59	172
60	34
61	19
62	206
63	76
64	12
65	87
66	197
67	9
68	206
69	244
70	12
71	88
72	278
73	277
74	248