A222396 Number of nX2 0..2 arrays with exactly floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order

0, 0, 0, 9, 0, 92, 0, 998, 0, 11136, 0, 124864, 0, 1410976, 0, 16045476, 0, 183423824, 0, 2106121248, 0, 24274382400, 0, 280683965456, 0, 3254633862912, 0, 37830853520448, 0, 440677391796992, 0, 5143023783831776, 0, 60124159059278592

Offset

1,4

Comments

Column 2 of A222402

Links

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

Example

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

Crossrefs

Sequence in context: A270010 A167319 A231948 * A222516 A057403 A339488

Adjacent sequences: A222393 A222394 A222395 * A222397 A222398 A222399

Keyword

nonn

Author

R. H. Hardin Feb 18 2013

Status

approved