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.

A196475 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,3,2,1 for x=0,1,2,3,4.

Table of values

n a(n)
1 12
2 28
3 27
4 136
5 557
6 5955
7 38826
8 128960
9 351238
10 1374515
11 5837922
12 30814351
13 167525199
14 704218824
15 2677605502
16 10721905782
17 44470299831
18 200591500952
19 939099305213
20 4163383808755
21 17808261939750
22 75069877372742

List of values

[12, 28, 27, 136, 557, 5955, 38826, 128960, 351238, 1374515, 5837922, 30814351, 167525199, 704218824, 2677605502, 10721905782, 44470299831, 200591500952, 939099305213, 4163383808755, 17808261939750, 75069877372742]

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

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