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.

A284321 Expansion of Product_{k>=0} (1 - x^(5*k+1))*(1 - x^(5*k+4)) in powers of x.

Table of values

n a(n)
0 1
1 -1
2 0
3 0
4 -1
5 1
6 -1
7 1
8 0
9 -1
10 2
11 -2
12 1
13 1
14 -2
15 3
16 -3
17 2
18 0
19 -3
20 5
21 -5
22 3
23 1
24 -5
25 7
26 -7
27 4
28 1
29 -7
30 11
31 -11
32 6
33 2
34 -10
35 15
36 -15
37 9
38 2
39 -14
40 22
41 -22
42 12
43 4
44 -20
45 30
46 -29
47 17
48 4
49 -27
50 42
51 -41
52 23
53 7
54 -37
55 55
56 -54
57 31
58 8
59 -49
60 76
61 -74
62 41
63 12
64 -66
65 99
66 -96
67 55
68 14

List of values

[1, -1, 0, 0, -1, 1, -1, 1, 0, -1, 2, -2, 1, 1, -2, 3, -3, 2, 0, -3, 5, -5, 3, 1, -5, 7, -7, 4, 1, -7, 11, -11, 6, 2, -10, 15, -15, 9, 2, -14, 22, -22, 12, 4, -20, 30, -29, 17, 4, -27, 42, -41, 23, 7, -37, 55, -54, 31, 8, -49, 76, -74, 41, 12, -66, 99, -96, 55, 14]