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A184599
1/4 the number of (n+1) X 5 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3.
1
58, 1123, 28192, 782948, 22581061, 661355087, 19597196907, 586441134417, 17688240987365, 536871796215114, 16377770252298658, 501706560946729804, 15422847845337959631, 475525543795160585979, 14699379057329857140441
OFFSET
1,1
COMMENTS
Column 4 of A184604.
LINKS
EXAMPLE
Some solutions for 3 X 5:
..0..1..0..0..0....0..0..0..1..0....1..1..1..1..0....1..0..0..0..0
..0..0..1..1..1....0..0..1..1..1....0..0..0..0..1....0..1..1..0..0
..0..1..1..1..0....0..1..0..0..0....0..0..0..0..1....0..1..0..1..1
CROSSREFS
Sequence in context: A157252 A142966 A093258 * A160347 A358795 A181280
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 18 2011
STATUS
approved