A254022 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

9560, 26370, 89310, 301423, 832322, 2360757, 6432784, 15616153, 36543872, 81734961, 174022362, 365039765, 745189794, 1482844047, 2915388714, 5666583615, 10928887048, 20997312222, 40160583566, 76571761037, 145770214166

Offset

1,1

Comments

Row 3 of A254020

Links

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

Example

Some solutions for n=3
..1..0..1..0..1....0..0..0..0..0....0..1..0..0..0....0..0..0..1..0
..0..0..0..0..0....0..1..1..0..1....0..0..0..0..1....0..0..0..0..1
..0..0..0..1..0....0..0..0..0..1....0..0..0..0..1....1..1..0..0..1
..0..0..1..1..0....0..1..1..1..1....1..1..1..1..0....0..0..0..1..1
..0..1..1..0..0....1..1..0..1..1....1..0..0..1..1....0..1..1..1..0

Crossrefs

Sequence in context: A136476 A136479 A254015 * A254889 A133449 A275687

Adjacent sequences: A254019 A254020 A254021 * A254023 A254024 A254025

Keyword

nonn

Author

R. H. Hardin, Jan 22 2015

Status

approved