A196704 Number of nX5 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.
12, 488, 8672, 193326, 4114365, 88057485, 1883754015, 40313628190, 862817869506, 18466264182264, 395214121573203, 8458285032169106, 181022745479257594, 3874225541604098047, 82915675332387910699, 1774550041727447332819
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..1..0..1..1....0..0..2..1..0....0..0..0..0..2....0..0..0..0..0 ..0..1..0..0..2....1..0..0..1..0....2..2..1..0..0....0..0..2..1..1 ..0..2..0..0..0....1..0..1..0..0....0..0..1..2..1....2..2..1..0..0 ..1..1..0..0..2....0..2..1..0..2....2..0..2..0..1....0..0..1..0..2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..200
Comments