A223123 Number of nX5 0..2 arrays with no more than floor(nX5/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

24, 3599, 444555, 95995609, 12483535858, 2785187722316, 372676751243307, 84505903344149667, 11496113424023100640, 2631023871587019381420, 361824554514147138010542, 83303795010271219904813736

Offset

1,1

Comments

Column 5 of A223126

Links

R. H. Hardin, Table of n, a(n) for n = 1..120

Example

Some solutions for n=3
..0..0..0..0..1....0..0..1..2..1....0..1..0..0..0....0..1..2..0..1
..1..2..1..0..2....0..2..0..2..0....0..1..0..1..1....0..0..0..1..0
..1..0..2..1..0....0..0..0..2..1....2..1..2..1..2....1..2..0..2..0

Crossrefs

Sequence in context: A071639 A061530 A275637 * A278651 A357266 A166768

Adjacent sequences: A223120 A223121 A223122 * A223124 A223125 A223126

Keyword

nonn

Author

R. H. Hardin, Mar 15 2013

Status

approved