A254514 Number of (3+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

12730, 68832, 373348, 2038857, 11441442, 63472542, 346212804, 1861616777, 9896712764, 52171402557, 273025139210, 1422668558313, 7383245580772, 38202249438014, 197104719513020, 1014425239586453, 5208202408115984

Offset

1,1

Comments

Row 3 of A254512

Links

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

Example

Some solutions for n=2
..0..0..1..1....1..1..1..1....0..0..0..0....1..0..0..0....0..0..1..0
..1..0..0..0....1..0..0..0....0..0..0..1....1..0..0..1....0..0..0..0
..1..1..1..1....0..1..1..1....1..0..0..1....0..0..0..0....1..1..1..1
..0..1..1..1....1..1..1..1....1..1..1..1....0..0..0..1....0..0..0..1
..0..0..1..1....0..1..1..0....1..1..1..1....0..0..0..0....0..1..1..1

Crossrefs

Sequence in context: A252325 A252322 A254507 * A254814 A275158 A206979

Adjacent sequences: A254511 A254512 A254513 * A254515 A254516 A254517

Keyword

nonn

Author

R. H. Hardin, Jan 31 2015

Status

approved