# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a221377 Showing 1-1 of 1 %I A221377 #3 Jan 13 2013 20:28:18 %S A221377 41,7723,1548941,318041768,66128482930,13839040254798, %T A221377 2904381959945700,610185056194548331,128236726426333833646 %N A221377 Number of nX5 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor, with no occupancy greater than 2 %C A221377 Column 5 of A221378 %e A221377 Some solutions for n=3 %e A221377 ..0..1..1..2..1....0..1..0..0..2....0..1..2..0..2....0..2..0..1..2 %e A221377 ..0..2..0..2..1....0..1..2..0..1....0..2..1..1..2....0..1..0..2..0 %e A221377 ..2..0..0..1..2....2..0..2..2..2....0..0..1..2..1....1..2..2..1..1 %K A221377 nonn %O A221377 1,1 %A A221377 _R. H. Hardin_ Jan 13 2013 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE