A222607 Number of nX4 0..3 arrays with exactly floor(nX4/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..3 order

6, 520, 42492, 3584673, 298478633, 24650010932, 2035465167670, 168350085915504, 13958743683093883, 1160492141797944493, 96733147665986387049, 8083044767407067197260, 676949508302758384319910

Offset

1,1

Comments

Column 4 of A222608

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

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

Crossrefs

Sequence in context: A365926 A250391 A003395 * A000411 A180431 A202967

Adjacent sequences: A222604 A222605 A222606 * A222608 A222609 A222610

Keyword

nonn

Author

R. H. Hardin Feb 26 2013

Status

approved