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.

A384426 G.f.: Sum_{k>=1} x^k * Product_{j=k..2*k} (1 + x^j).

Table of values

n a(n)
0 0
1 1
2 2
3 2
4 3
5 2
6 3
7 3
8 4
9 4
10 4
11 5
12 6
13 5
14 6
15 7
16 8
17 8
18 9
19 9
20 10
21 12
22 12
23 13
24 14
25 14
26 16
27 18
28 19
29 20
30 21
31 22
32 24
33 26
34 28
35 30
36 32
37 33
38 34
39 38
40 40
41 43
42 46
43 48
44 51
45 54
46 56
47 60
48 64
49 67
50 72
51 77
52 80
53 84
54 88
55 92
56 98
57 105
58 110
59 116
60 122
61 128
62 134
63 142
64 148
65 155
66 164
67 172

List of values

[0, 1, 2, 2, 3, 2, 3, 3, 4, 4, 4, 5, 6, 5, 6, 7, 8, 8, 9, 9, 10, 12, 12, 13, 14, 14, 16, 18, 19, 20, 21, 22, 24, 26, 28, 30, 32, 33, 34, 38, 40, 43, 46, 48, 51, 54, 56, 60, 64, 67, 72, 77, 80, 84, 88, 92, 98, 105, 110, 116, 122, 128, 134, 142, 148, 155, 164, 172]