A196298 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,1,4,2 for x=0,1,2,3,4.
16, 536, 4988, 97892, 1752855, 29726608, 513362648, 9011375854, 157499416616, 2741611675889, 47786154938133, 835079584650718, 14574818807228610, 254227577927404022, 4437435057747448441, 77465536560470518968
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..0..2..1..2..0....1..0..0..0..0..1....0..1..1..0..1..1....1..1..1..1..0..1 ..0..2..1..0..1..1....1..0..0..0..0..1....0..1..2..2..1..0....0..0..0..2..0..2 ..0..1..1..0..2..1....1..0..0..0..2..1....0..2..2..1..1..0....0..0..2..1..2..1 ..0..1..2..0..0..0....2..1..1..1..1..0....0..1..1..0..1..1....1..2..1..0..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..188
Comments