A232256 Number of (n+1)X(7+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor

272417, 379188715, 526801789327, 736185965972615, 1028773221352198121, 1437630006838652764923, 2008977605538697290717011, 2807392800304444226523889915, 3923117101757165454921811549965

Offset

1,1

Comments

Column 7 of A232257

Links

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

Example

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

Crossrefs

Sequence in context: A013998 A236623 A214193 * A114663 A151650 A128479

Adjacent sequences: A232253 A232254 A232255 * A232257 A232258 A232259

Keyword

nonn

Author

R. H. Hardin, Nov 21 2013

Status

approved