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.

A133739 Expansion of q * (psi(q^6) / psi(q^3))^3 * phi(q)^5 / psi(q) in powers of q where phi(), psi() are Ramanujan theta functions.

Table of values

n a(n)
1 1
2 9
3 31
4 45
5 6
6 -45
7 8
8 117
9 121
10 54
11 12
12 -9
13 14
14 72
15 186
16 261
17 18
18 -207
19 20
20 270
21 248
22 108
23 24
24 63
25 31
26 126
27 391
28 360
29 30
30 -270
31 32
32 549
33 372
34 162
35 48
36 -171
37 38
38 180
39 434
40 702
41 42
42 -360
43 44
44 540
45 726
46 216
47 48
48 207
49 57
50 279
51 558
52 630
53 54
54 -693
55 72
56 936
57 620

List of values

[1, 9, 31, 45, 6, -45, 8, 117, 121, 54, 12, -9, 14, 72, 186, 261, 18, -207, 20, 270, 248, 108, 24, 63, 31, 126, 391, 360, 30, -270, 32, 549, 372, 162, 48, -171, 38, 180, 434, 702, 42, -360, 44, 540, 726, 216, 48, 207, 57, 279, 558, 630, 54, -693, 72, 936, 620]