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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.

A246954 Expansion of phi(-x) * psi(-x)^2 in powers of x where phi(), psi() are Ramanujan theta functions.

Table of values

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

List of values

[1, -4, 5, -4, 8, -8, 5, -12, 8, -4, 16, -12, 9, -12, 8, -12, 16, -16, 8, -16, 17, -8, 24, -8, 8, -28, 16, -12, 16, -20, 13, -24, 24, -8, 16, -16, 16, -28, 24, -12, 32, -16, 13, -28, 8, -20, 32, -32, 8, -20, 24, -16, 40, -16, 16, -32, 25, -20, 24, -24, 24, -28]

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

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