A240378 Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4

4, 38, 330, 2066, 16994, 116030, 884792, 6273952, 46648918, 335571098, 2468592214, 17883911418, 130889355348, 951392168734, 6947056359884, 50571064277718, 368890128041664, 2687133002363550, 19592211767424272, 142760104420636614

Offset

1,1

Comments

Column 3 of A240381

Links

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

Example

Some solutions for n=4
..1..3..1....3..1..1....3..1..1....3..1..3....3..1..3....1..3..3....1..3..1
..1..3..1....3..2..2....2..1..0....3..2..2....3..0..0....1..0..0....1..2..0
..1..2..2....1..2..0....1..3..1....3..2..2....3..2..2....1..0..0....3..0..2
..2..0..0....3..0..2....1..0..3....2..0..3....1..2..2....3..2..3....1..0..2

Crossrefs

Sequence in context: A240287 A092642 A020865 * A220807 A221021 A155859

Adjacent sequences: A240375 A240376 A240377 * A240379 A240380 A240381

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved