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.

A196702 Number of nX3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,1,0,4,2 for x=0,1,2,3,4.

Table of values

n a(n)
1 4
2 38
3 207
4 1366
5 8672
6 55436
7 353591
8 2257739
9 14423220
10 92115943
11 588320201
12 3757410951
13 23997532467
14 153266354657
15 978872278459
16 6251798756146
17 39928597422454
18 255013470704155
19 1628704187503479
20 10402106496493731

List of values

[4, 38, 207, 1366, 8672, 55436, 353591, 2257739, 14423220, 92115943, 588320201, 3757410951, 23997532467, 153266354657, 978872278459, 6251798756146, 39928597422454, 255013470704155, 1628704187503479, 10402106496493731]

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

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