A234338 - OEIS

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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

604, 9076, 120838, 1709528, 23776684, 333289866, 4661112720, 65252337120, 913202183554, 12781885209276, 178897637723208, 2503927583256606, 35045839285941264, 490514833684342100, 6865426090112847610

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OFFSET

1,1

COMMENTS

Column 1 of A234343

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

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

Adjacent sequences: A234335 A234336 A234337 * A234339 A234340 A234341

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 23 2013

STATUS

approved