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.

A370541 Expansion of g.f. A(x) = Product_{n>=1} (1 + x^(n-1) + x^(2*n-1)) * (1 + x^n + x^(2*n-1)) * (1 - x^n - x^(2*n)).

Table of values

n a(n)
0 2
1 5
2 0
3 -1
4 0
5 -18
6 -15
7 -23
8 -36
9 -25
10 -52
11 -35
12 -42
13 -8
14 13
15 4
16 96
17 100
18 208
19 227
20 388
21 434
22 499
23 709
24 670
25 837
26 883
27 1057
28 775
29 1044
30 819
31 643
32 535
33 -78
34 -345
35 -970
36 -1494
37 -3017
38 -3142
39 -5078
40 -6102
41 -7711
42 -9410
43 -11406
44 -13148
45 -15353
46 -17831
47 -18841
48 -22708
49 -22955
50 -26117

List of values

[2, 5, 0, -1, 0, -18, -15, -23, -36, -25, -52, -35, -42, -8, 13, 4, 96, 100, 208, 227, 388, 434, 499, 709, 670, 837, 883, 1057, 775, 1044, 819, 643, 535, -78, -345, -970, -1494, -3017, -3142, -5078, -6102, -7711, -9410, -11406, -13148, -15353, -17831, -18841, -22708, -22955, -26117]