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A257208 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally and vertically 1
616608, 992467, 729311, 1140763, 958492, 675943, 848628, 1025500, 1197017, 1484651, 1806573, 2155273, 2551405, 3016791, 3558516, 4160683, 4814887, 5553807, 6369827, 7256231, 8227854, 9283499, 10430813, 11681467, 13036214, 14490345 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A257209

LINKS

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

EXAMPLE

Some solutions for n=1

..0..1..0..0..0..0..1..0..1....0..0..1..0..1..1..0..0..1

..1..0..0..0..1..0..1..0..1....1..0..1..1..1..1..0..1..0

..1..0..0..0..1..1..1..1..1....1..1..0..0..0..1..1..1..1

CROSSREFS

Cf. A257209

Sequence in context: A172707 A254913 A254906 * A122131 A238053 A254802

Adjacent sequences:  A257205 A257206 A257207 * A257209 A257210 A257211

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 18 2015

STATUS

approved

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Last modified July 25 16:03 EDT 2021. Contains 346291 sequences. (Running on oeis4.)