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.

A183308 Half the number of nX7 binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors.

Table of values

n a(n)
1 8
2 22
3 205
4 1798
5 19899
6 206755
7 2160250
8 22504107
9 234636215
10 2447317278
11 25539919635
12 266563403686
13 2782185688787
14 29038350922976
15 303075629656107
16 3163217395827118
17 33014647369487612
18 344575588242732515

List of values

[8, 22, 205, 1798, 19899, 206755, 2160250, 22504107, 234636215, 2447317278, 25539919635, 266563403686, 2782185688787, 29038350922976, 303075629656107, 3163217395827118, 33014647369487612, 344575588242732515]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.