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A254383
Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1
512, 35529, 8533796, 6208345944, 14008701570284, 99661265319327258, 2165666188993340904078, 146977323440908911644985083, 30949376415040215031162843169020, 20149875590838758609564635874891385665
OFFSET
1,1
COMMENTS
Diagonal of A254390
LINKS
EXAMPLE
Some solutions for n=2
..1..1..0..1....0..1..0..1....0..1..1..1....0..1..0..1....0..1..1..1
..1..0..1..1....0..1..1..0....0..1..0..1....1..1..0..0....0..1..0..1
..0..1..1..0....1..0..0..0....0..0..1..0....0..0..0..1....0..1..0..1
..0..1..1..0....1..1..1..0....1..0..1..1....1..1..0..0....0..1..1..0
CROSSREFS
Sequence in context: A253864 A308815 A253536 * A253977 A254084 A284033
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 29 2015
STATUS
approved