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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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 22 05:19 EST 2022. Contains 350481 sequences. (Running on oeis4.)