A232083 Number of (7+1)X(n+1) 0..1 arrays with every element equal to some horizontal, diagonal or antidiagonal neighbor, with top left element zero

3809, 1193537, 164650280, 34420057373, 7588839921175, 1623332441842096, 346245388962998639, 73998528709201418867, 15817322237857233639836, 3380527884608408309224127, 722490763842803146891010551

Offset

1,1

Comments

Row 7 of A232076

Links

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

Example

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

Crossrefs

Sequence in context: A234765 A228545 A179174 * A234668 A259522 A209894

Adjacent sequences: A232080 A232081 A232082 * A232084 A232085 A232086

Keyword

nonn

Author

R. H. Hardin, Nov 17 2013

Status

approved