A254511 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, vertically and ne-to-sw antidiagonally

2977462, 19754506, 346212804, 4236936385, 52092582762, 690528516461, 8348810077730, 102608552114625, 1257883999628732, 15152298811003507, 182056109152149032, 2177240054350783580, 25897273186842012214

Offset

1,1

Comments

Column 7 of A254512

Links

R. H. Hardin, Table of n, a(n) for n = 1..96

Example

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

Crossrefs

Sequence in context: A205095 A233652 A239918 * A254518 A254818 A065427

Adjacent sequences: A254508 A254509 A254510 * A254512 A254513 A254514

Keyword

nonn

Author

R. H. Hardin, Jan 31 2015

Status

approved