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A254853 Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum two 1
110544, 103684, 216000, 729316, 2811104, 12013156, 50676440, 192820996, 677038812, 2389645456, 8994716592, 36477180100, 149567548816, 578080419856, 2112980405676, 7642791993600, 28538086816176, 112257203522500 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A254854

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A250591 A187114 A145872 * A250533 A251191 A206540

Adjacent sequences:  A254850 A254851 A254852 * A254854 A254855 A254856

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 08 2015

STATUS

approved

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Last modified January 27 03:09 EST 2022. Contains 350601 sequences. (Running on oeis4.)