A200804 Number of nX3 0..2 arrays with no average of any element and its diagonal, antidiagonal, horizontal and vertical neighbors equal to one

10, 378, 4420, 70534, 1258392, 20829336, 349133136, 5916801764, 99672653784, 1679768996616, 28339196899298, 477878305752628, 8058283551459626, 135897588105196130, 2291737593646865132, 38647016142961331790

Offset

1,1

Comments

Column 3 of A200809

Links

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

Example

Some solutions for 4X4
..2..0..1....0..1..0....0..1..0....1..0..1....2..1..2....0..1..0....0..1..2
..0..1..1....0..0..0....2..0..0....1..1..1....2..1..1....2..0..0....0..1..1
..0..0..0....1..1..0....2..0..0....1..0..1....1..1..1....0..0..0....2..0..0
..1..2..0....0..0..2....0..0..2....0..0..1....2..2..2....0..2..0....0..1..1

Crossrefs

Sequence in context: A291530 A358801 A117312 * A277663 A000591 A131312

Adjacent sequences: A200801 A200802 A200803 * A200805 A200806 A200807

Keyword

nonn

Author

R. H. Hardin Nov 22 2011

Status

approved