A183251 Half the number of nX5 binary arrays with the number of 1-1 adjacencies equal to the number of 0-0 adjacencies

3, 60, 1092, 29100, 807261, 23226996, 679637064, 20179029954, 604725622404, 18266061977928, 554965080799320, 16945075284820056, 519457695018730590, 15978813032029512408, 492934399395198819204, 15244888270950051755268

Offset

1,1

Comments

Column 5 of A183253

Links

R. H. Hardin, Table of n, a(n) for n = 1..100

Example

Some solutions with a(1,1)=0 for 3X5
..0..1..1..1..1....0..1..0..0..0....0..0..1..0..0....0..0..1..1..0
..0..1..0..0..0....0..1..1..0..0....1..0..1..1..0....1..0..1..1..0
..1..1..0..0..1....1..1..1..1..0....0..1..0..1..1....0..1..0..0..1

Crossrefs

Sequence in context: A144659 A115490 A065889 * A001084 A137150 A248707

Adjacent sequences: A183248 A183249 A183250 * A183252 A183253 A183254

Keyword

nonn

Author

R. H. Hardin Jan 03 2011

Status

approved