A183427 Half the number of nX4 0..2 arrays with no element equal its row sum plus its column sum mod 3

27, 129, 2097, 62694, 568053, 9465579, 153369936, 2690956971, 45874334853, 796531210974, 13594653632997, 236054009534571, 4119252539173344, 72199869938810379, 1270404732873196197, 22433067829384669998

Offset

1,1

Comments

Column 4 of A183429

Links

R. H. Hardin, Table of n, a(n) for n = 1..32

Example

Some solutions for 6X4
..0..0..0..2....0..0..0..2....0..0..0..2....0..0..0..2....0..0..0..0
..0..0..0..2....0..0..0..2....0..0..0..2....0..0..0..2....0..0..0..0
..0..0..1..1....2..0..2..0....0..1..1..0....0..2..0..0....1..1..0..2
..1..1..1..0....1..2..0..0....0..1..1..0....0..1..1..1....0..2..0..1
..1..0..2..0....0..0..0..2....2..2..2..0....0..0..0..2....1..1..1..1
..1..1..2..2....0..1..0..1....1..2..2..1....2..2..2..1....2..0..0..1

Crossrefs

Sequence in context: A048615 A124955 A126414 * A262852 A066414 A344315

Adjacent sequences: A183424 A183425 A183426 * A183428 A183429 A183430

Keyword

nonn

Author

R. H. Hardin Jan 04 2011

Status

approved