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.

A344301 Minimum number of cells in an n X n grid that need to be painted so that each unpainted cell is orthogonally adjacent to exactly one painted cell.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 8
6 12
7 15
8 16
9 24
10 28
11 35
12 36
13 48
14 54
15 63
16 64
17 77
18 88
19 96
20 100
21 117
22 130
23 140
24 144

List of values

[1, 2, 3, 4, 8, 12, 15, 16, 24, 28, 35, 36, 48, 54, 63, 64, 77, 88, 96, 100, 117, 130, 140, 144]