A205900 Number of 8X(n+1) 0..2 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors

2913944, 614898304, 148827007430, 34411101807016, 7771632134436102, 1779010729295626558

Offset

1,1

Comments

Row 7 of A205894

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for n=3
..1..0..2..0....1..1..0..1....1..1..2..1....0..0..1..0....2..0..0..1
..1..2..0..1....1..0..1..1....1..0..2..0....0..1..0..2....1..1..2..0
..0..1..1..0....2..2..1..2....1..2..2..0....1..2..2..0....0..1..2..2
..0..2..1..0....1..1..0..2....1..2..1..1....1..0..2..1....2..2..1..2
..1..2..1..2....1..0..2..0....1..0..1..2....2..1..0..2....1..2..0..1
..0..1..2..0....0..2..2..0....1..1..0..2....1..2..1..1....2..0..2..1
..2..1..2..1....2..2..1..1....1..2..2..0....2..2..1..0....2..1..1..0
..2..2..1..2....1..0..0..1....0..1..1..1....2..2..2..0....1..2..1..2

Crossrefs

Sequence in context: A246054 A251247 A205292 * A071369 A238179 A205095

Adjacent sequences: A205897 A205898 A205899 * A205901 A205902 A205903

Keyword

nonn

Author

R. H. Hardin Feb 01 2012

Status

approved