A222517 Number of nX3 0..3 arrays with exactly floor(nX3/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order

0, 0, 4, 37, 0, 1302, 1318, 90581, 70734, 5931248, 5165434, 396589283, 363819326, 26492741018, 25813321786, 1772163042969, 1828692355062, 118639519688172, 129482347946176, 7949399002469286, 9161368832882458, 533108011913115020

Offset

1,3

Comments

Column 3 of A222522

Links

R. H. Hardin, Table of n, a(n) for n = 1..207

Example

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

Crossrefs

Sequence in context: A296136 A061024 A297105 * A103369 A031189 A045555

Adjacent sequences: A222514 A222515 A222516 * A222518 A222519 A222520

Keyword

nonn

Author

R. H. Hardin Feb 23 2013

Status

approved