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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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 13 2014
STATUS
approved

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Last modified May 31 11:52 EDT 2023. Contains 363066 sequences. (Running on oeis4.)