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A222506 Number of nX5 0..1 arrays with exactly floor(nX5/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order 1
4, 10, 35, 423, 2066, 23678, 128889, 1529195, 8569032, 102004630, 577797690, 6918500106, 39468519264, 474774414486, 2721664132317, 32865146885501, 189103727308651, 2290577790555642, 13219410500639451, 160529083824632284 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A222509

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..105

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A149178 A318701 A152916 * A108596 A204270 A287220

Adjacent sequences:  A222503 A222504 A222505 * A222507 A222508 A222509

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 23 2013

STATUS

approved

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Last modified July 12 22:46 EDT 2020. Contains 335669 sequences. (Running on oeis4.)