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A203609 Number of nX7 0,1 arrays with adjacent row and column sums unequal 0
2, 900, 149794, 20742920, 2608783126, 310153746516, 35610018145138, 3993667091848452 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A203610
LINKS
EXAMPLE
Some solutions for 4X4
..1..0..1..0..1..1..1....1..0..0..1..0..1..0....1..0..0..1..0..1..1
..1..1..1..1..1..1..1....0..0..1..0..1..1..1....1..1..0..0..1..1..1
..1..1..1..1..1..1..0....1..0..0..0..1..0..0....0..0..1..1..1..1..0
..0..0..0..0..1..0..0....1..1..1..0..0..1..0....0..0..1..1..0..1..0
CROSSREFS
Sequence in context: A229678 A261528 A265881 * A265617 A324597 A159723
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 03 2012
STATUS
approved

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Last modified March 28 16:58 EDT 2024. Contains 371254 sequences. (Running on oeis4.)