A222428 Number of nX5 0..2 arrays with exactly floor(nX5/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order

4, 36, 298, 7929, 77053, 2601092, 28654054, 1031825766, 11887826140, 435680320590, 5083894845555, 187837607291427, 2206718413576904, 81926552529032816, 966535136365083102, 36010552757817373905

Offset

1,1

Comments

Column 5 of A222430

Links

R. H. Hardin, Table of n, a(n) for n = 1..36

Example

Some solutions for n=4
..0..0..0..0..0....0..1..0..0..0....0..0..1..0..1....0..0..0..0..0
..0..0..0..1..1....0..0..0..0..0....1..2..1..1..1....0..0..0..0..0
..0..0..1..0..0....0..0..0..2..0....1..1..1..1..1....1..0..0..0..0
..0..0..0..0..0....0..0..0..0..1....1..1..1..1..1....1..2..0..1..2

Crossrefs

Sequence in context: A108019 A241104 A361554 * A279581 A093186 A000765

Adjacent sequences: A222425 A222426 A222427 * A222429 A222430 A222431

Keyword

nonn

Author

R. H. Hardin Feb 19 2013

Status

approved