A254921 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically

5646340, 104789699, 1047501844, 2099821580, 9583362322, 25105585331, 82012007541, 336730767069, 1179926723641, 4870619624896, 20009787257730, 87601632858714, 372750709521678, 1772550618854695, 7888290528462535

Offset

1,1

Comments

Column 7 of A254922

Links

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

Example

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

Crossrefs

Sequence in context: A234174 A258536 A258529 * A290162 A251018 A254388

Adjacent sequences: A254918 A254919 A254920 * A254922 A254923 A254924

Keyword

nonn

Author

R. H. Hardin, Feb 10 2015

Status

approved