A253480 Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically

27000, 1069400, 44878810, 1878758740, 78704951512, 3297669520142, 138204642567680, 5791515989673804, 242710135725239668, 10171279006748889244, 426252400904323368342, 17863104607113877927270

Offset

1,1

Comments

Column 4 of A253482

Links

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

Example

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

Crossrefs

Sequence in context: A162144 A305728 A253485 * A186136 A159995 A253339

Adjacent sequences: A253477 A253478 A253479 * A253481 A253482 A253483

Keyword

nonn

Author

R. H. Hardin, Jan 02 2015

Status

approved