A254360 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and the central column and the two maximums of the diagonal and antidiagonal nondecreasing horizontally and vertically

6117882, 194880155, 7242659832, 209075168007, 5503997022610, 141739772634410, 3500668531776909, 84121858747037375, 1992820861563225530, 46753223555031495616, 1089587851201293112265, 25289152796895055689257

Offset

1,1

Comments

Column 7 of A254361

Links

R. H. Hardin, Table of n, a(n) for n = 1..136

Example

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

Crossrefs

Sequence in context: A237896 A254585 A254592 * A224640 A185887 A306872

Adjacent sequences: A254357 A254358 A254359 * A254361 A254362 A254363

Keyword

nonn

Author

R. H. Hardin, Jan 29 2015

Status

approved