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.

A196311 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,4,1,3 for x=0,1,2,3,4.

Table of values

n a(n)
1 8
2 34
3 111
4 866
5 3349
6 21545
7 132202
8 626170
9 3119098
10 18588893
11 109247680
12 581746205
13 3045137702
14 17018115620
15 96581654323
16 529545856166
17 2858809327649
18 15727308156830
19 87667270415711
20 483842000666953
21 2645294630253350

List of values

[8, 34, 111, 866, 3349, 21545, 132202, 626170, 3119098, 18588893, 109247680, 581746205, 3045137702, 17018115620, 96581654323, 529545856166, 2858809327649, 15727308156830, 87667270415711, 483842000666953, 2645294630253350]

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

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