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A252289
Number of (n+2)X(4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 or 4.
1
5910, 8636, 20558, 68320, 254401, 1012183, 4209322, 17769366, 75470425, 321306676, 1369472043, 5841029470, 24919280843, 106316764110, 453616602660, 1935494108299, 8258474145347, 35237860179533, 150356116419137
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OFFSET
1,1
COMMENTS
Column 4 of
A252293
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..0..2..1..0..2..0....2..2..1..2..2..2....1..1..1..1..1..1....2..2..2..2..1..2
..2..1..0..2..1..0....1..2..2..2..2..2....0..1..1..1..0..1....2..2..2..2..2..2
..1..2..2..1..2..2....2..1..2..2..2..2....1..1..1..1..1..1....2..2..2..1..2..2
..0..2..1..0..2..1....2..2..1..2..2..2....1..0..1..1..1..1....1..2..2..2..2..1
..2..1..0..2..1..0....1..2..2..1..2..2....1..1..1..1..0..1....2..2..1..2..2..2
..1..2..2..1..0..2....0..1..2..2..1..2....1..1..1..1..1..1....2..2..2..2..2..2
CROSSREFS
Sequence in context:
A209431
A163209
A216942
*
A385337
A284980
A251464
Adjacent sequences:
A252286
A252287
A252288
*
A252290
A252291
A252292
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Dec 16 2014
STATUS
approved
