A205899 Number of 7X(n+1) 0..2 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors

511044, 61390466, 8325468740, 1085248304854, 138728411577118, 17941121077647948, 2311335083182156332, 298087795358600636864, 38430894973618825053506, 4955732666674458435678678

Offset

1,1

Comments

Row 6 of A205894

Links

R. H. Hardin, Table of n, a(n) for n = 1..13

Example

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

Crossrefs

Sequence in context: A138207 A249881 A205291 * A068816 A233858 A306952

Adjacent sequences: A205896 A205897 A205898 * A205900 A205901 A205902

Keyword

nonn

Author

R. H. Hardin Feb 01 2012

Status

approved