A233784 Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11

48, 864, 20816, 966892, 58298272, 9169500236, 1472672162576, 936160880114700, 400441246073473608

Offset

1,1

Comments

Diagonal of A233792

Links

Table of n, a(n) for n=1..9.

Example

Some solutions for n=3
..3..1..2..1....2..2..2..1....3..1..2..0....2..1..2..0....0..2..1..1
..2..1..3..1....1..0..1..3....3..2..0..1....2..0..2..1....0..1..3..2
..3..1..2..1....2..0..2..3....3..1..2..2....1..0..1..3....0..2..1..3
..2..1..3..1....1..0..1..1....3..2..0..1....0..2..2..1....1..0..2..1

Crossrefs

Sequence in context: A192839 A014401 A241873 * A233959 A233177 A014703

Adjacent sequences: A233781 A233782 A233783 * A233785 A233786 A233787

Keyword

nonn

Author

R. H. Hardin, Dec 15 2013

Status

approved