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A252064 Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4 1
10836, 43618, 299027, 2292363, 18508976, 151165482, 1229012088, 9989905340, 81383095801, 663247905243, 5404259846759, 44037554191519, 358893036197953, 2925065465729381, 23840188492575250, 194301900497527943 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A252065

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..198

EXAMPLE

Some solutions for n=2

..2..1..2..2..2..2..1..2..2....2..2..2..2..2..2..2..2..2

..1..2..2..1..2..2..1..2..2....1..2..2..2..2..2..2..2..1

..2..2..2..2..2..2..1..2..2....2..2..2..2..1..2..2..2..2

..2..2..2..2..2..2..1..2..2....2..2..2..2..2..2..2..2..2

CROSSREFS

Sequence in context: A235254 A237190 A065321 * A295993 A185517 A250954

Adjacent sequences:  A252061 A252062 A252063 * A252065 A252066 A252067

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 13 2014

STATUS

approved

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Last modified August 10 04:38 EDT 2020. Contains 336368 sequences. (Running on oeis4.)