A234863 Number of (n+2)X(2+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

11714, 56100, 272878, 1375612, 7418922, 41004436, 226557788, 1275430856, 7323656914, 41575518312, 238368201718, 1388296595292, 7966257332788, 46054074430248, 269870537562698, 1556158815336760, 9030637577786558

Offset

1,1

Comments

Column 2 of A234867

Links

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

Example

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

Crossrefs

Sequence in context: A237933 A251347 A346276 * A362200 A250695 A250680

Adjacent sequences: A234860 A234861 A234862 * A234864 A234865 A234866

Keyword

nonn

Author

R. H. Hardin, Jan 01 2014

Status

approved