A256763 Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum

352, 14641, 475904, 16777216, 372556800, 7780827681, 117202871808, 1607509551376, 18188873230624, 185599234557361, 1717824808451648, 14261419187961856, 114631549276294144, 822273125910687361

Offset

1,1

Comments

Diagonal of A256771

Links

R. H. Hardin, Table of n, a(n) for n = 1..16

Example

Some solutions for n=2
..1..1..1..1....1..1..0..1....1..1..0..1....0..1..0..1....1..0..1..0
..1..1..1..0....1..1..0..1....1..0..1..1....1..0..0..0....1..0..1..0
..1..0..1..1....0..0..0..1....0..1..0..1....1..0..1..0....0..0..1..1
..1..1..1..1....0..1..1..1....1..0..1..1....1..0..0..1....0..0..0..0

Crossrefs

Cf. A256771

Sequence in context: A255501 A229740 A255500 * A279583 A156177 A104160

Adjacent sequences: A256760 A256761 A256762 * A256764 A256765 A256766

Keyword

nonn

Author

R. H. Hardin, Apr 09 2015

Status

approved