A222766 Number of nX5 0..1 arrays with exactly floor(nX5/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order

4, 18, 158, 2608, 19766, 333978, 2645385, 45830457, 370518626, 6504289924, 53224723750, 942396671062, 7774316625479, 138492173604656, 1149166452333809, 20564313304270211, 171388475477573948, 3077759439903425070

Offset

1,1

Comments

Column 5 of A222769

Links

R. H. Hardin, Table of n, a(n) for n = 1..205

Example

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

Crossrefs

Sequence in context: A330467 A356560 A356530 * A302827 A007153 A239839

Adjacent sequences: A222763 A222764 A222765 * A222767 A222768 A222769

Keyword

nonn

Author

R. H. Hardin Mar 05 2013

Status

approved