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.

A376580 G.f.: Sum_{k>=0} x^(k^2) * Product_{j=1..k} (1 + x^(2*j-1))^2.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 1
5 2
6 1
7 2
8 4
9 3
10 3
11 3
12 3
13 4
14 4
15 5
16 5
17 7
18 9
19 7
20 8
21 9
22 9
23 10
24 11
25 12
26 13
27 14
28 15
29 18
30 17
31 19
32 24
33 23
34 25
35 27
36 28
37 31
38 32
39 33
40 37
41 40
42 42
43 44
44 47
45 52
46 54
47 59
48 62
49 67
50 75
51 75
52 80
53 87
54 90
55 95
56 102
57 109
58 114
59 119
60 127
61 134
62 142
63 150
64 159
65 171
66 178
67 187
68 199
69 211

List of values

[1, 1, 2, 1, 1, 2, 1, 2, 4, 3, 3, 3, 3, 4, 4, 5, 5, 7, 9, 7, 8, 9, 9, 10, 11, 12, 13, 14, 15, 18, 17, 19, 24, 23, 25, 27, 28, 31, 32, 33, 37, 40, 42, 44, 47, 52, 54, 59, 62, 67, 75, 75, 80, 87, 90, 95, 102, 109, 114, 119, 127, 134, 142, 150, 159, 171, 178, 187, 199, 211]