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.

A183581 Half the number of nX6 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 38
2 12024
3 1282814
4 149355515
5 17195908538
6 1988200387149
7 229716738097391
8 26548571098836075
9 3068082753691026342
10 354569738678873849813
11 40976532204608285387767
12 4735538672860090875422373

List of values

[38, 12024, 1282814, 149355515, 17195908538, 1988200387149, 229716738097391, 26548571098836075, 3068082753691026342, 354569738678873849813, 40976532204608285387767, 4735538672860090875422373]

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

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