A186824 Half the number of (n+2)X10 binary arrays with each 3X3 subblock having sum 4 or 5

8730234, 390661554, 15639380661, 676967599202, 32322581577916, 1516683374850488, 72230087740874585

Offset

1,1

Comments

Column 8 of A186825

Links

Table of n, a(n) for n=1..7.

Example

Some solutions for 4X10 with a(1,1)=0
..0..0..1..0..1..0..0..1..0..1....0..0..1..0..0..1..0..1..1..0
..0..0..1..0..1..1..1..0..1..1....0..0..1..1..0..1..0..0..0..0
..0..1..1..0..0..1..0..0..1..0....0..1..1..0..1..1..0..1..1..0
..0..0..1..0..0..1..0..0..1..0....0..0..1..0..0..1..0..1..1..0

Crossrefs

Sequence in context: A015378 A337463 A151936 * A179577 A345617 A346334

Adjacent sequences: A186821 A186822 A186823 * A186825 A186826 A186827

Keyword

nonn

Author

R. H. Hardin Feb 27 2011

Status

approved