A232323 Number of (7+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero

610, 60605, 6764246, 1036869496, 158534446141, 23818815015639, 3587649343841650, 540472751303594139, 81418399274442809469, 12264913365847776296865, 1847601218114334916009886

Offset

1,1

Comments

Row 7 of A232316

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A224048 A224279 A224202 * A264070 A264022 A223810

Adjacent sequences: A232320 A232321 A232322 * A232324 A232325 A232326

Keyword

nonn

Author

R. H. Hardin, Nov 22 2013

Status

approved