A196311 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,4,1,3 for x=0,1,2,3,4.
8, 34, 111, 866, 3349, 21545, 132202, 626170, 3119098, 18588893, 109247680, 581746205, 3045137702, 17018115620, 96581654323, 529545856166, 2858809327649, 15727308156830, 87667270415711, 483842000666953, 2645294630253350
Offset: 1
Keywords
Examples
Some solutions for n=4 ..1..1..3..1..0....0..0..0..1..1....0..0..0..0..0....1..1..3..1..0 ..0..0..1..1..0....1..3..1..3..0....1..1..3..1..1....0..0..1..3..1 ..0..0..3..1..0....3..1..1..1..1....3..1..1..1..1....0..0..1..3..1 ..0..0..1..3..1....1..0..0..0..1....1..0..0..0..0....0..0..1..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..200
Comments