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.

A229803 Domination number for rook graph HR(n) on a triangular board of hexagonal cells. The rook can move along any row of adjacent cells, in any of the three directions.

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 3
6 3
7 3
8 4
9 4
10 5
11 5
12 6
13 6
14 7
15 7
16 8
17 8
18 9
19 9
20 9
21 10
22 10
23 11
24 11

List of values

[1, 1, 2, 2, 3, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 9, 10, 10, 11, 11]