A232310 Number of (n+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero

2, 24, 1202, 231454, 161243887, 400571676322, 3587649343841650, 115662789623304964655, 13420410026776778616974635, 5604396268950285334109397116334, 8423557107575828118320152665611119144

Offset

1,1

Comments

Diagonal of A232316

Links

R. H. Hardin, Table of n, a(n) for n = 1..15

Example

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

Crossrefs

Sequence in context: A307157 A354557 A137887 * A350792 A028365 A094050

Adjacent sequences: A232307 A232308 A232309 * A232311 A232312 A232313

Keyword

nonn

Author

R. H. Hardin, Nov 22 2013

Status

approved