A254516 Number of (5+2)X(n+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.

221858, 1731335, 13015622, 95905212, 801430034, 6552192968, 52092582762, 414195302102, 3267664893694, 25620128426624, 199502861018784, 1551135290302456, 12013242353953978, 92891646744731958, 716518252995935278

Offset

1,1

Comments

Row 5 of A254512

Links

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

Example

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

Crossrefs

Sequence in context: A223369 A366824 A254509 * A254816 A373466 A046396

Adjacent sequences: A254513 A254514 A254515 * A254517 A254518 A254519

Keyword

nonn

Author

R. H. Hardin, Jan 31 2015

Status

approved