A203046 Number of (n+3)X9 binary arrays with no more than one of any consecutive four bits set in any row or column.

62393, 672157, 7590348, 86445746, 963362129, 10711347544, 119515110620, 1337168329880, 14945047693907, 166885634079461, 1863503343104193, 20816672648177087, 232554300676213050, 2597725853580219065

Offset

1,1

Comments

Column 6 of A203048

Links

R. H. Hardin, Table of n, a(n) for n = 1..153

Example

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

Crossrefs

Sequence in context: A360838 A181114 A242620 * A180163 A180202 A031659

Adjacent sequences: A203043 A203044 A203045 * A203047 A203048 A203049

Keyword

nonn

Author

R. H. Hardin, Dec 27 2011

Status

approved