A222288 Number of nX6 0..1 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order

4, 44, 532, 6619, 89852, 1249354, 17801910, 256986006, 3744123550, 55066210090, 815041154350, 12128319606229, 181260757915998, 2718723553039248, 40900893166050078, 616897705864541974, 9325074227006211226

Offset

1,1

Comments

Column 6 of A222290

Links

R. H. Hardin, Table of n, a(n) for n = 1..47

Example

Some solutions for n=4
..0..0..0..0..0..1....0..0..1..1..1..0....0..0..0..0..0..1....0..0..0..0..0..1
..0..0..0..0..1..1....0..1..1..1..1..1....1..0..0..0..0..0....0..0..0..0..1..1
..0..0..0..0..1..0....1..1..1..1..1..0....0..1..0..0..0..0....0..0..0..1..1..0
..0..0..0..1..1..0....1..1..1..1..1..0....0..1..0..0..0..0....0..0..0..0..1..1

Crossrefs

Sequence in context: A342346 A082779 A223053 * A053315 A005721 A103870

Adjacent sequences: A222285 A222286 A222287 * A222289 A222290 A222291

Keyword

nonn

Author

R. H. Hardin Feb 14 2013

Status

approved