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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.

A258831 Expansion of (psi(-x^3) * f(-x, x^2))^2 in powers of x where psi(), f(,) are Ramanujan theta functions.

Table of values

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

List of values

[1, -2, 3, -4, 5, -8, 7, -8, 9, -10, 14, -12, 16, -14, 15, -20, 17, -18, 19, -24, 26, -22, 23, -28, 25, -32, 32, -28, 29, -30, 38, -32, 33, -40, 40, -44, 42, -38, 39, -40, 57, -42, 43, -44, 45, -62, 47, -56, 49, -56, 62, -52, 53, -60, 64, -68, 64, -58, 59, -60]

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

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