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A234400 Number of (n+1)X(1+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12 1
432, 5646, 66806, 829594, 10158894, 125160846, 1539127906, 18941648974, 233051484674, 2867671002026, 35285174854854, 434171029131638, 5342290306236582, 65734726289230182, 808838805043145334 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 1 of A234405
LINKS
FORMULA
Empirical: a(n) = 13*a(n-1) +33*a(n-2) -544*a(n-3) -162*a(n-4) +7372*a(n-5) -2717*a(n-6) -33870*a(n-7) +18799*a(n-8) +19183*a(n-9) -2790*a(n-10) -1716*a(n-11)
EXAMPLE
Some solutions for n=3
..6..0....3..3....0..1....4..2....2..0....4..6....2..3....0..6....3..2....3..4
..4..0....0..6....4..6....2..6....6..6....3..0....5..0....0..5....6..0....5..0
..6..2....2..6....1..0....0..3....0..2....0..3....5..6....2..6....1..0....6..2
..0..1....0..4....3..6....6..3....2..6....5..2....5..0....2..0....3..6....0..1
CROSSREFS
Sequence in context: A235418 A235422 A234405 * A236279 A223595 A223436
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 25 2013
STATUS
approved

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Last modified April 17 03:42 EDT 2024. Contains 371756 sequences. (Running on oeis4.)