A231798 - OEIS

A231798

Number of (n+1) X (n+1) 0..1 arrays with no element having a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors equal to one.

5, 61, 1699, 157633, 55365917, 49517022951, 136680218773938, 1238966901352323684, 33422575469205248761449, 2727001865924519366481416822

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Diagonal of A231806.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4

..0..0..0..0..1....0..0..1..0..0....0..1..0..0..0....0..0..1..0..0

..1..0..1..0..0....0..0..0..1..0....0..0..0..1..0....0..0..0..0..0

..0..0..0..0..0....0..0..1..0..0....0..0..0..0..1....0..0..1..0..0

..0..0..0..0..1....0..0..0..0..1....0..0..1..0..0....0..0..0..0..1

..1..0..0..0..0....0..1..1..0..0....1..0..0..0..0....1..0..1..0..0

CROSSREFS

Cf. A231806.

Sequence in context: A028296 A159316 A361556 * A258672 A326571 A201254

Adjacent sequences: A231795 A231796 A231797 * A231799 A231800 A231801

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 13 2013

STATUS

approved