A232320 Number of (4+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero

34, 551, 10409, 231454, 5142441, 113293694, 2499669158, 55147236337, 1216656297612, 26841719357568, 592179351445235, 13064599837184618, 288229857559634498, 6358897503996161509, 140289343114550595132

Offset

1,1

Comments

Row 4 of A232316

Links

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

Formula

Empirical recurrence of order 78 (see link above)

Example

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

Crossrefs

Sequence in context: A020929 A160279 A230332 * A133720 A010950 A330412

Adjacent sequences: A232317 A232318 A232319 * A232321 A232322 A232323

Keyword

nonn

Author

R. H. Hardin, Nov 22 2013

Status

approved