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A254850 Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum two 1
4624, 6889, 13456, 37636, 99856, 271441, 729316, 1996569, 5466244, 15202201, 41550916, 113891584, 307932304, 843379681, 2298435364, 6356553984, 17355427600, 47726519296, 129502098496, 355212424009, 966505272100 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A254854

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Sequence in context: A140175 A116226 A115446 * A139410 A031566 A236815

Adjacent sequences:  A254847 A254848 A254849 * A254851 A254852 A254853

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 08 2015

STATUS

approved

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Last modified December 5 09:34 EST 2021. Contains 349543 sequences. (Running on oeis4.)