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

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