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.

A072567 A variant of Zarankiewicz problem: maximal number of 1s in n X n 01-matrix with no four 1s forming a rectangle.

Table of values

n a(n)
1 1
2 3
3 6
4 9
5 12
6 16
7 21
8 24
9 29
10 34
11 39
12 45
13 52
14 56
15 61
16 67
17 74
18 81
19 88
20 96
21 105
22 108
23 115
24 122

List of values

[1, 3, 6, 9, 12, 16, 21, 24, 29, 34, 39, 45, 52, 56, 61, 67, 74, 81, 88, 96, 105, 108, 115, 122]