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.

A205473 Number of (n+1)X7 0..2 arrays with every 2X2 subblock having the same number of equal edges, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 11143
2 405702
3 15614579
4 637115198
5 26272023365
6 1094476686239
7 45724154665434
8 1914758450334723
9 80250258826348339
10 3365536894872561413
11 141181596884768969546
12 5923561349136374628421
13 248557182283520215199720

List of values

[11143, 405702, 15614579, 637115198, 26272023365, 1094476686239, 45724154665434, 1914758450334723, 80250258826348339, 3365536894872561413, 141181596884768969546, 5923561349136374628421, 248557182283520215199720]

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

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