cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A097917 Denominator 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

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

List of values

[6, 3, 15, 1, 3, 3, 3, 3, 3, 1, 3, 3, 3, 3, 3, 3, 1, 3, 3, 1, 3, 3, 3, 3, 3, 3, 1, 1, 3, 3, 1, 3, 3, 3, 1, 3, 3, 1, 3, 3, 1, 1, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 3, 1, 3, 3, 1, 3, 3, 3, 3, 3, 1, 1, 1, 3, 1, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 3, 3, 1, 3, 1, 1, 1, 3, 3, 3, 3, 1, 3, 3, 3, 3]