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A255754 Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the medians of the diagonal and antidiagonal minus the two sums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
293012, 386060, 341801, 371616, 360501, 473630, 733081, 1166662, 1720217, 3169356, 6568657, 12211026, 19689657, 40611648, 92377017, 178040632, 292586745, 618865560, 1437213809, 2789956224, 4602903185, 9790126112, 22844752297 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A255756
LINKS
FORMULA
Empirical: a(n) = 2*a(n-1) -a(n-2) +21*a(n-4) -42*a(n-5) +21*a(n-6) -84*a(n-8) +168*a(n-9) -84*a(n-10) +64*a(n-12) -128*a(n-13) +64*a(n-14) for n>28
EXAMPLE
Some solutions for n=1
..0..0..1..1..0..1..1..0....0..0..1..1..1..1..1..0....0..0..0..1..1..0..0..1
..1..1..0..0..1..0..0..0....1..1..1..0..1..0..0..1....1..0..0..0..0..0..0..0
..1..1..1..1..1..0..1..1....1..1..1..1..1..0..0..1....1..0..1..1..1..1..0..0
CROSSREFS
Sequence in context: A104328 A219318 A255761 * A254843 A318787 A158124
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 05 2015
STATUS
approved

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Last modified February 27 16:07 EST 2024. Contains 370378 sequences. (Running on oeis4.)