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A234338
Number of (n+1)X(1+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 14
1
604, 9076, 120838, 1709528, 23776684, 333289866, 4661112720, 65252337120, 913202183554, 12781885209276, 178897637723208, 2503927583256606, 35045839285941264, 490514833684342100, 6865426090112847610
OFFSET
1,1
COMMENTS
Column 1 of A234343
LINKS
FORMULA
Empirical: a(n) = 11*a(n-1) +100*a(n-2) -657*a(n-3) -3362*a(n-4) +13855*a(n-5) +47579*a(n-6) -118877*a(n-7) -254743*a(n-8) +334913*a(n-9) +167982*a(n-10) -130132*a(n-11) -15912*a(n-12) +10008*a(n-13)
EXAMPLE
Some solutions for n=3
..5..0....2..0....5..5....2..4....7..2....7..0....0..2....3..4....1..0....0..1
..0..2....6..7....7..0....7..2....1..3....3..0....3..7....7..1....5..7....7..2
..2..7....3..0....1..0....0..2....0..7....5..7....0..7....7..0....0..5....0..2
..7..5....6..7....7..7....7..6....2..4....0..0....2..2....5..1....7..5....7..7
CROSSREFS
Sequence in context: A234109 A321269 A234343 * A250969 A265244 A228036
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 23 2013
STATUS
approved