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.

A183576 Half the number of n X n 0..3 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors.

Table of values

n a(n)
1 0
2 14
3 814
4 240358
5 320224986
6 1988200387149
7 57140106100076100

List of values

[0, 14, 814, 240358, 320224986, 1988200387149, 57140106100076100]