A254818 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically

2977462, 64480314, 1555784900, 32502418874, 617600165386, 12435035618491, 217878991008870, 3771753148316327, 61586887588052458, 968604700606962030, 14635977192740530502, 214319036384955266381, 3044935137597325880998

Offset

1,1

Comments

Column 7 of A254819

Links

R. H. Hardin, Table of n, a(n) for n = 1..37

Example

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

Crossrefs

Sequence in context: A239918 A254511 A254518 * A065427 A017406 A017526

Adjacent sequences: A254815 A254816 A254817 * A254819 A254820 A254821

Keyword

nonn

Author

R. H. Hardin, Feb 08 2015

Status

approved