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.

A369557 Expansion of Sum_{n>=0} Product_{k=0..n} (x^k + x^(n-k)).

Table of values

n a(n)
0 3
1 4
2 2
3 6
4 3
5 4
6 9
7 4
8 8
9 6
10 13
11 8
12 12
13 12
14 10
15 22
16 13
17 22
18 14
19 26
20 20
21 34
22 23
23 32
24 36
25 34
26 42
27 36
28 59
29 38
30 67
31 46
32 75
33 56
34 82
35 66
36 98
37 84
38 100
39 102
40 105
41 126
42 116
43 152
44 119
45 184
46 136
47 202
48 154
49 230
50 181
51 256
52 203
53 276
54 250
55 306
56 285
57 326
58 342
59 348
60 398
61 374
62 463
63 404
64 525
65 438
66 610
67 486
68 666
69 542
70 744
71 610

List of values

[3, 4, 2, 6, 3, 4, 9, 4, 8, 6, 13, 8, 12, 12, 10, 22, 13, 22, 14, 26, 20, 34, 23, 32, 36, 34, 42, 36, 59, 38, 67, 46, 75, 56, 82, 66, 98, 84, 100, 102, 105, 126, 116, 152, 119, 184, 136, 202, 154, 230, 181, 256, 203, 276, 250, 306, 285, 326, 342, 348, 398, 374, 463, 404, 525, 438, 610, 486, 666, 542, 744, 610]