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

144, 828, 4720, 28328, 171136, 1058160, 6567360, 41201312, 258836736, 1634181568, 10321040640, 65334469248, 413583689728, 2620872361728, 16607229684736, 105284419873280, 667423413317632, 4231949297097728, 26832344201039872

Offset

1,1

Comments

Column 1 of A234091

Links

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

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

Adjacent sequences: A234081 A234082 A234083 * A234085 A234086 A234087

Keyword

nonn

Author

R. H. Hardin, Dec 19 2013

Status

approved