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.

A245433 Expansion of f(-x^3, -x^5)^2 / (psi(-x) * psi(x^2)) in powers of x where psi() is a Ramanujan theta function and f(, ) is Ramanujan's general theta functions.

Table of values

n a(n)
0 1
1 1
2 0
3 -1
4 1
5 1
6 -2
7 -2
8 3
9 4
10 -4
11 -5
12 5
13 6
14 -8
15 -9
16 12
17 13
18 -14
19 -17
20 18
21 21
22 -26
23 -28
24 34
25 39
26 -42
27 -49
28 53
29 60
30 -70
31 -78
32 90
33 101
34 -110
35 -125
36 137
37 153
38 -174
39 -192
40 217
41 241
42 -264
43 -295
44 322
45 357
46 -400
47 -438
48 490
49 540
50 -588
51 -652
52 711
53 781
54 -866
55 -946

List of values

[1, 1, 0, -1, 1, 1, -2, -2, 3, 4, -4, -5, 5, 6, -8, -9, 12, 13, -14, -17, 18, 21, -26, -28, 34, 39, -42, -49, 53, 60, -70, -78, 90, 101, -110, -125, 137, 153, -174, -192, 217, 241, -264, -295, 322, 357, -400, -438, 490, 540, -588, -652, 711, 781, -866, -946]