A187939 Number of (n+2)X10 binary arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum.

131184, 1509288, 222519352, 16028160870, 1600390024874

Offset

1,1

Comments

Column 8 of A187940

Links

Table of n, a(n) for n=1..5.

Example

Some solutions for 4X10
..0..0..0..1..1..0..1..1..0..1....0..1..0..0..1..0..0..0..1..1
..0..1..0..0..0..0..1..0..1..0....0..0..0..1..0..1..0..1..0..0
..0..0..0..0..1..1..1..1..0..1....0..1..0..1..0..0..0..1..0..1
..1..0..0..1..0..1..0..1..1..0....0..0..1..0..1..0..1..0..0..1

Crossrefs

Sequence in context: A036095 A384373 A214290 * A234687 A170782 A237004

Adjacent sequences: A187936 A187937 A187938 * A187940 A187941 A187942

Keyword

nonn

Author

R. H. Hardin, Mar 16 2011

Status

approved