login
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
1
2, 24, 1202, 231454, 161243887, 400571676322, 3587649343841650, 115662789623304964655, 13420410026776778616974635, 5604396268950285334109397116334, 8423557107575828118320152665611119144
OFFSET
1,1
COMMENTS
Diagonal of A232316
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 22 2013
STATUS
approved