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.

A197196 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,1,3,2,0 for x=0,1,2,3,4.

Table of values

n a(n)
1 6
2 41
3 213
4 1283
5 7363
6 42664
7 247053
8 1431868
9 8291425
10 48020216
11 278171097
12 1611110131
13 9331719493
14 54050435220
15 313063366107
16 1813289742008
17 10502730648812
18 60832658109790
19 352347783107193
20 2040827608413023

List of values

[6, 41, 213, 1283, 7363, 42664, 247053, 1431868, 8291425, 48020216, 278171097, 1611110131, 9331719493, 54050435220, 313063366107, 1813289742008, 10502730648812, 60832658109790, 352347783107193, 2040827608413023]

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

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