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A205315
Number of (n+1)X6 0..1 arrays with every 2X2 subblock having the same number of equal edges, and new values 0..1 introduced in row major order
1
488, 7784, 126536, 2068148, 33865634, 554916092, 9094954742, 149077423220, 2443638951908, 40055966781734, 656597489663162, 10762963773161732, 176426890096852634, 2891996520924867398, 47405724154180563434
OFFSET
1,1
COMMENTS
Column 5 of A205318
LINKS
FORMULA
Empirical: a(n) = 31*a(n-1) -321*a(n-2) +1569*a(n-3) -4179*a(n-4) +6420*a(n-5) -5671*a(n-6) +2668*a(n-7) -516*a(n-8)
EXAMPLE
Some solutions for n=4
..0..1..1..1..0..1....0..1..1..1..1..1....0..1..0..0..1..0....0..0..0..1..0..0
..1..1..0..1..0..1....1..1..0..1..0..1....1..1..0..1..1..1....1..0..1..1..1..1
..1..0..0..0..0..1....0..1..1..1..1..1....0..1..1..1..0..1....1..1..1..0..0..1
..0..0..1..0..1..1....1..1..0..0..1..0....0..1..0..0..0..1....0..1..0..0..1..1
..1..0..1..1..1..0....0..0..0..1..1..0....0..1..1..1..1..1....1..1..0..1..1..0
CROSSREFS
Sequence in context: A126819 A045011 A253336 * A118449 A223398 A214334
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 25 2012
STATUS
approved