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A205316 Number of (n+1)X7 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
1460, 35500, 882182, 22091516, 554916092, 13956665238, 351210375464, 8839958693704, 222522561716050, 5601638723985320, 141014378310113564, 3549888849256712462, 89364987835152404176, 2249679176828409331216 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A205318
LINKS
FORMULA
Empirical: a(n) = 56*a(n-1) -1164*a(n-2) +12439*a(n-3) -78536*a(n-4) +314610*a(n-5) -829844*a(n-6) +1464316*a(n-7) -1728640*a(n-8) +1345964*a(n-9) -671600*a(n-10) +205552*a(n-11) -36416*a(n-12) +3392*a(n-13) -128*a(n-14)
EXAMPLE
Some solutions for n=4
..0..0..0..1..0..0..0....0..0..1..0..0..0..1....0..0..1..1..1..0..1
..1..1..1..1..0..1..0....0..1..1..0..1..0..1....0..1..1..0..0..0..1
..1..0..1..0..0..1..0....1..1..0..0..1..1..1....1..1..0..0..1..1..1
..1..1..1..0..1..1..1....1..0..0..1..1..0..0....1..0..0..1..1..0..0
..0..1..0..0..1..0..0....0..0..1..1..0..0..1....0..0..1..1..0..0..1
CROSSREFS
Sequence in context: A219725 A219722 A237947 * A283493 A232347 A251942
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 25 2012
STATUS
approved

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Last modified February 24 22:04 EST 2024. Contains 370307 sequences. (Running on oeis4.)