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.

A369802 Inversion count of the Eytzinger array layout of n elements.

Table of values

n a(n)
0 0
1 0
2 1
3 1
4 4
5 6
6 7
7 7
8 14
9 20
10 25
11 29
12 32
13 34
14 35
15 35
16 50
17 64
18 77
19 89
20 100
21 110
22 119
23 127
24 134
25 140
26 145
27 149
28 152
29 154
30 155
31 155
32 186
33 216
34 245
35 273
36 300
37 326
38 351
39 375
40 398
41 420
42 441
43 461
44 480
45 498
46 515
47 531
48 546
49 560
50 573
51 585
52 596
53 606
54 615
55 623
56 630

List of values

[0, 0, 1, 1, 4, 6, 7, 7, 14, 20, 25, 29, 32, 34, 35, 35, 50, 64, 77, 89, 100, 110, 119, 127, 134, 140, 145, 149, 152, 154, 155, 155, 186, 216, 245, 273, 300, 326, 351, 375, 398, 420, 441, 461, 480, 498, 515, 531, 546, 560, 573, 585, 596, 606, 615, 623, 630]