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A252342 Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 2 3 or 4 1
5706, 46154, 413478, 3338572, 26921266, 220263010, 1793526072, 14603098032, 119141197236, 970914856560, 7908180946110, 64445220210966, 525255370174422, 4280374713230132, 34879216328489506, 284228789406515474 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A252343

LINKS

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

EXAMPLE

Some solutions for n=2

..1..0..0..0..0..0..0..0..0....1..2..2..2..2..2..2..1..2

..0..0..0..1..0..0..0..0..0....2..2..2..2..2..2..2..2..2

..0..0..0..0..0..0..0..1..0....2..2..2..2..2..2..1..2..2

..0..0..0..0..0..0..0..0..0....2..2..2..1..2..2..2..2..1

CROSSREFS

Sequence in context: A269344 A184147 A235207 * A237743 A025027 A030469

Adjacent sequences:  A252339 A252340 A252341 * A252343 A252344 A252345

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 16 2014

STATUS

approved

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Last modified June 21 06:24 EDT 2021. Contains 345358 sequences. (Running on oeis4.)