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.

A145708 Expansion of psi(-q) / psi(-q^5) in powers of q where psi() is a Ramanujan theta function.

Table of values

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

List of values

[1, -1, 0, -1, 0, 1, 0, 0, -1, 0, 2, 0, 0, -1, 0, 2, -1, 0, -2, 0, 3, -2, 0, -3, 0, 5, -2, 0, -3, 0, 6, -2, 0, -4, 0, 8, -3, 0, -6, 0, 11, -5, 0, -8, 0, 14, -6, 0, -10, 0, 18, -6, 0, -12, 0, 22, -9, 0, -16, 0, 28, -13, 0, -21, 0, 36, -14, 0, -25, 0, 44, -16, 0]

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

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