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A234084 Number of (n+1)X(1+1) 0..5 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 10 1
144, 828, 4720, 28328, 171136, 1058160, 6567360, 41201312, 258836736, 1634181568, 10321040640, 65334469248, 413583689728, 2620872361728, 16607229684736, 105284419873280, 667423413317632, 4231949297097728, 26832344201039872 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 1 of A234091
LINKS
FORMULA
Empirical: a(n) = 4*a(n-1) +42*a(n-2) -112*a(n-3) -552*a(n-4) +672*a(n-5) +2656*a(n-6) -64*a(n-7) -2176*a(n-8) -768*a(n-9)
EXAMPLE
Some solutions for n=5
..3..2....3..0....2..3....2..0....1..2....0..3....2..3....3..4....2..3....3..4
..1..4....0..1....4..5....1..3....4..1....1..2....4..1....1..4....4..1....5..2
..2..1....3..2....3..2....4..4....3..4....0..3....2..3....3..4....2..3....4..3
..4..1....3..0....0..1....3..1....1..2....3..2....3..0....5..2....2..5....1..4
..2..3....3..2....3..2....2..4....3..0....0..1....3..2....4..3....3..4....3..4
..3..0....1..0....4..5....3..5....1..0....2..3....5..2....4..1....5..2....2..5
CROSSREFS
Sequence in context: A237738 A237734 A234091 * A223235 A187301 A120089
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 2013
STATUS
approved

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Last modified July 23 19:18 EDT 2024. Contains 374553 sequences. (Running on oeis4.)