A297766 Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.

1, 14, 1045, 10639, 109228, 2263784, 45618455, 739821272, 12181204009, 214913229652, 3770723150572, 64742737047855, 1114199103262826, 19305756803013227, 334233068253483784, 5774144936515374280

Offset

1,2

Comments

Row 5 of A297762.

Links

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

Example

Some solutions for n=5
..1..1..0..0..0. .0..0..0..1..1. .0..1..1..1..0. .0..0..0..1..1
..0..1..1..0..0. .0..0..1..1..1. .0..1..1..1..0. .0..0..0..1..1
..1..0..1..1..0. .1..1..0..1..0. .0..0..1..0..0. .0..1..0..1..0
..0..1..0..1..0. .1..1..0..1..1. .0..1..0..1..0. .1..0..1..0..1
..1..1..1..1..1. .1..1..1..1..0. .0..0..1..0..0. .0..1..0..1..0

Crossrefs

Cf. A297762.

Sequence in context: A263217 A208388 A227205 * A160011 A104226 A282272

Adjacent sequences: A297763 A297764 A297765 * A297767 A297768 A297769

Keyword

nonn

Author

R. H. Hardin, Jan 05 2018

Status

approved