A187934 Number of (n+2)X5 binary arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum

304, 704, 7616, 50802, 435194, 3394156, 27734942, 222519352, 1806824700, 14613188788, 118539179458, 960617285450, 7792028797892, 63191254464846, 512612165552564, 4158105409259042, 33732198233141518, 273646099830762238

Offset

1,1

Comments

Column 3 of A187940

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 4X5
..1..0..1..0..1....0..1..0..0..0....0..0..1..0..1....1..0..1..0..1
..1..0..1..0..1....1..0..1..0..1....1..0..0..1..0....1..1..1..0..1
..0..1..0..1..0....0..1..0..0..0....0..0..1..0..1....0..1..0..1..0
..0..1..0..1..0....1..0..1..1..0....0..1..0..1..0....1..1..1..1..0

Crossrefs

Sequence in context: A214608 A158932 A270303 * A300538 A300965 A300922

Adjacent sequences: A187931 A187932 A187933 * A187935 A187936 A187937

Keyword

nonn

Author

R. H. Hardin Mar 16 2011

Status

approved