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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 (list; graph; refs; listen; history; text; internal format)
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: A330087 A307157 A137887 * A028365 A094050 A000479

Adjacent sequences:  A232307 A232308 A232309 * A232311 A232312 A232313

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 22 2013

STATUS

approved

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Last modified September 16 08:14 EDT 2021. Contains 347469 sequences. (Running on oeis4.)