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A232952 Number of nX5 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, and top left element zero 1
81, 4629, 283131, 17429409, 1074244299, 66226131273, 4082986991091, 251727862281441, 15519780149309307, 956841601733733945, 58992197961597648195, 3637048689898637056977, 224235130894279830031179 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A232955
LINKS
FORMULA
Empirical: a(n) = 78*a(n-1) -1043*a(n-2) +2012*a(n-3) +10236*a(n-4) -39726*a(n-5) +41724*a(n-6) -6408*a(n-7) -8680*a(n-8) +2592*a(n-9) -96*a(n-10)
EXAMPLE
Some solutions for n=2
..0..0..2..2..0....0..1..3..1..3....0..2..0..2..0....0..0..0..0..2
..1..0..2..2..0....0..1..3..3..1....0..1..3..2..2....2..0..1..0..2
CROSSREFS
Sequence in context: A174698 A204222 A264193 * A205285 A222166 A219728
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 02 2013
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)