A203044 Number of (n+3)X7 binary arrays with no more than one of any consecutive four bits set in any row or column

6365, 41617, 283870, 1941572, 12958109, 86445746, 579826944, 3901532872, 26198114119, 175675221993, 1178208385041, 7907824387651, 53079768577632, 356204915725459, 2390083486476288, 16038176530380477, 107628315946156767

Offset

1,1

Comments

Column 4 of A203048

Links

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

Example

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

Crossrefs

Sequence in context: A292743 A117050 A292040 * A105009 A237380 A251406

Adjacent sequences: A203041 A203042 A203043 * A203045 A203046 A203047

Keyword

nonn

Author

R. H. Hardin Dec 27 2011

Status

approved