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A254475 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally and vertically 0
512, 11293, 211579, 2539310, 24234594, 205535751, 1553637600, 8600345305, 55445966383, 490042680771, 2850234052306, 20174333834904 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A254483
LINKS
EXAMPLE
Some solutions for n=2
..0..0..1..0....0..1..0..0....0..1..0..0....0..0..1..0....0..0..0..0
..1..1..1..0....1..0..0..1....0..0..0..1....1..1..1..0....0..0..0..1
..1..0..0..1....1..0..1..0....0..0..0..0....1..1..1..1....1..0..0..0
..0..1..1..1....0..0..0..0....1..1..1..1....0..1..1..1....1..1..0..0
CROSSREFS
Sequence in context: A257182 A288776 A200844 * A254768 A254504 A253812
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 31 2015
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)