login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

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
1
6, 41, 213, 1283, 7363, 42664, 247053, 1431868, 8291425, 48020216, 278171097, 1611110131, 9331719493, 54050435220, 313063366107, 1813289742008, 10502730648812, 60832658109790, 352347783107193, 2040827608413023
OFFSET
1,1
COMMENTS
Every 0 is next to 0 4's, every 1 is next to 1 1's, every 2 is next to 2 3's, every 3 is next to 3 2's, every 4 is next to 4 0's
Column 5 of A197199
LINKS
EXAMPLE
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
CROSSREFS
Sequence in context: A291890 A217326 A196433 * A295117 A198795 A320090
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 11 2011
STATUS
approved