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.

A196135 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,3,4 for x=0,1,2,3,4.

Table of values

n a(n)
1 1
2 14
3 31
4 165
5 326
6 1350
7 3288
8 12943
9 33772
10 113604
11 328378
12 1119797
13 3245707
14 10352649
15 31244339
16 100779085
17 304866170
18 952470015
19 2927610616
20 9231448285
21 28362649959
22 88098662332
23 272473939620
24 851211806848
25 2631049299378

List of values

[1, 14, 31, 165, 326, 1350, 3288, 12943, 33772, 113604, 328378, 1119797, 3245707, 10352649, 31244339, 100779085, 304866170, 952470015, 2927610616, 9231448285, 28362649959, 88098662332, 272473939620, 851211806848, 2631049299378]

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

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