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.
6, 41, 213, 1283, 7363, 42664, 247053, 1431868, 8291425, 48020216, 278171097, 1611110131, 9331719493, 54050435220, 313063366107, 1813289742008, 10502730648812, 60832658109790, 352347783107193, 2040827608413023
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..0..0..1..0....1..0..1..1..0....0..0..1..0..1....0..0..0..0..0 ..0..0..0..1..0....1..0..0..0..1....1..0..1..0..1....1..0..0..1..1 ..0..0..0..0..0....0..0..0..0..1....1..0..0..0..0....1..0..1..0..0 ..0..1..1..0..0....0..0..1..1..0....0..1..1..0..0....0..0..1..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments