A222352 - OEIS

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A222352

Number of n X n 0..1 arrays with no more than floor(n X n/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order

1, 1, 5, 73, 1054, 67171, 4355033, 1211912419, 345057233257, 408476458623284

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

Diagonal of A222360

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4

..0..1..1..1....0..0..0..0....0..1..1..1....0..0..0..0....0..0..1..0

..0..1..1..1....1..0..0..0....1..1..1..1....0..0..0..0....0..0..0..0

..1..1..1..1....0..0..0..0....1..1..1..1....0..0..0..0....0..0..0..0

..0..1..1..1....0..0..0..0....0..1..1..1....0..0..1..0....0..0..0..0

CROSSREFS

Sequence in context: A108444 A155662 A182328 * A159509 A127167 A378409

Adjacent sequences: A222349 A222350 A222351 * A222353 A222354 A222355

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 16 2013

STATUS

approved

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