A255760 Number of (5+2)X(n+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

99200, 86062, 81494, 124928, 196744, 360501, 553072, 962648, 1560352, 2706176, 4233320, 6903168, 10501880, 16557800, 24368576, 36532028, 52140896, 76716744, 106586856, 150848380, 204568672, 287918836, 383572584, 523678364, 685208352

Offset

1,1

Comments

Row 5 of A255756

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 8*a(n-1) -28*a(n-2) +56*a(n-3) -62*a(n-4) -8*a(n-5) +196*a(n-6) -440*a(n-7) +543*a(n-8) -320*a(n-9) -224*a(n-10) +832*a(n-11) -1112*a(n-12) +896*a(n-13) -448*a(n-14) +128*a(n-15) -16*a(n-16) for n>43

Example

Some solutions for n=4
..0..0..0..0..1..1....1..1..1..0..1..0....0..1..1..1..1..1....0..0..1..0..1..1
..1..1..0..1..1..0....1..1..1..1..0..0....1..1..1..1..1..1....0..1..0..0..1..0
..0..1..1..1..0..0....1..1..0..1..0..1....0..1..1..1..0..0....1..1..0..1..0..0
..0..0..1..1..1..0....0..1..0..0..0..1....1..1..0..1..1..0....1..0..1..1..0..1
..0..1..1..0..0..1....0..0..1..0..0..0....0..1..1..0..0..1....1..0..1..0..1..1
..1..1..0..0..0..0....0..0..0..0..1..0....0..0..1..1..0..0....0..0..0..0..1..0
..0..0..0..0..0..0....0..1..0..0..0..1....1..1..0..0..0..1....0..1..0..0..0..1

Crossrefs

Cf. A255756

Sequence in context: A359345 A093778 A234494 * A255753 A254842 A339936

Adjacent sequences: A255757 A255758 A255759 * A255761 A255762 A255763

Keyword

nonn

Author

R. H. Hardin, Mar 05 2015

Status

approved