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.

A382980 a(n) = [(x*y)^n] Product_{k>=1} (1 + x^k - y^k).

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 0
5 2
6 0
7 4
8 2
9 6
10 4
11 10
12 6
13 14
14 10
15 14
16 10
17 20
18 6
19 22
20 2
21 10
22 14
23 16
24 -32
25 14
26 6
27 -26
28 -20
29 12
30 -56
31 28
32 -2
33 -38
34 96
35 56
36 -38
37 200
38 298
39 82
40 338
41 460
42 446
43 666
44 852
45 456
46 1580
47 1172
48 1048
49 1608
50 2426
51 1236
52 2810
53 2222
54 2824
55 2066
56 3716
57 1612
58 5498

List of values

[1, 0, 0, 0, 0, 2, 0, 4, 2, 6, 4, 10, 6, 14, 10, 14, 10, 20, 6, 22, 2, 10, 14, 16, -32, 14, 6, -26, -20, 12, -56, 28, -2, -38, 96, 56, -38, 200, 298, 82, 338, 460, 446, 666, 852, 456, 1580, 1172, 1048, 1608, 2426, 1236, 2810, 2222, 2824, 2066, 3716, 1612, 5498]