A222396 - OEIS

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

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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