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.

A258747 Expansion of chi(-x) * f(x^3) * f(-x^6) in powers of x where chi(), f() are Ramanujan theta functions.

Table of values

n a(n)
0 1
1 -1
2 0
3 0
4 0
5 -1
6 -2
7 2
8 1
9 0
10 0
11 2
12 0
13 0
14 -2
15 0
16 1
17 0
18 0
19 0
20 0
21 -1
22 -2
23 0
24 2
25 -2
26 0
27 2
28 0
29 -2
30 0
31 0
32 2
33 -1
34 0
35 0
36 0
37 0
38 0
39 2
40 3
41 0
42 0
43 0
44 0
45 -2
46 -2
47 0
48 0
49 0
50 0
51 0
52 0
53 0
54 -2
55 2
56 1
57 -2
58 0
59 2
60 0
61 0
62 -4
63 0
64 2
65 -1
66 0
67 0
68 0
69 0
70 -2
71 2
72 0
73 0
74 0
75 2
76 0
77 0
78 0
79 0
80 2

List of values

[1, -1, 0, 0, 0, -1, -2, 2, 1, 0, 0, 2, 0, 0, -2, 0, 1, 0, 0, 0, 0, -1, -2, 0, 2, -2, 0, 2, 0, -2, 0, 0, 2, -1, 0, 0, 0, 0, 0, 2, 3, 0, 0, 0, 0, -2, -2, 0, 0, 0, 0, 0, 0, 0, -2, 2, 1, -2, 0, 2, 0, 0, -4, 0, 2, -1, 0, 0, 0, 0, -2, 2, 0, 0, 0, 2, 0, 0, 0, 0, 2]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.