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A186821 Half the number of (n+2)X7 binary arrays with each 3X3 subblock having sum 4 or 5 1
70767, 1190637, 18829218, 315843055, 5634207241, 99751773733, 1783799078413, 32322581577916, 584495537657334, 10594536209194545, 192625016377623752, 3500057158418808686, 63637200466766220870, 1157907423273867982529 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A186825
LINKS
EXAMPLE
Some solutions for 4X7 with a(1,1)=0
..0..0..1..0..0..1..0....0..0..1..0..1..0..0....0..0..1..0..0..0..1
..0..1..0..0..1..0..0....0..1..0..0..1..1..0....0..1..1..1..1..1..0
..0..1..1..0..1..1..0....0..1..1..1..0..1..1....0..1..0..0..1..0..0
..1..0..1..0..0..1..1....1..0..0..1..0..0..0....0..1..0..0..1..0..0
CROSSREFS
Sequence in context: A252104 A236016 A204482 * A252728 A226530 A215994
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 27 2011
STATUS
approved

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Last modified April 17 01:50 EDT 2024. Contains 371756 sequences. (Running on oeis4.)