A234865 Number of (n+2)X(4+2) 0..3 arrays with each 3X3 subblock having the sum of its 72 absolute element differences equal to 52, and no adjacent elements equal

326786, 1375612, 6113796, 29472954, 161033032, 950535104, 5625963918, 35154924248, 233690454262, 1504949151192, 10086648696624, 70769757753404, 473977778228566, 3290361775892880, 23686288224729122, 161604711198389224

Offset

1,1

Comments

Column 4 of A234867

Links

R. H. Hardin, Table of n, a(n) for n = 1..30

Example

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

Crossrefs

Sequence in context: A237306 A210387 A269901 * A251438 A251850 A244566

Adjacent sequences: A234862 A234863 A234864 * A234866 A234867 A234868

Keyword

nonn

Author

R. H. Hardin, Jan 01 2014

Status

approved