A233927 Number of (n+1)X(7+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8 and no adjacent elements equal

2500838, 171250610, 14257498880, 1445209360978, 161038431160850, 19149252827167936, 2356133940564872484, 296071347102693344766, 37626468096976114491628, 4814161800417108996279366

Offset

1,1

Comments

Column 7 of A233928

Links

R. H. Hardin, Table of n, a(n) for n = 1..125

Example

Some solutions for n=1
..3..1..0..1..4..1..0..1....3..0..4..3..4..2..4..2....2..0..3..1..4..3..0..4
..0..2..4..2..1..0..3..4....0..1..2..0..1..3..1..3....0..2..1..3..2..0..1..3

Crossrefs

Sequence in context: A114659 A179733 A234910 * A157769 A183651 A259628

Adjacent sequences: A233924 A233925 A233926 * A233928 A233929 A233930

Keyword

nonn

Author

R. H. Hardin, Dec 17 2013

Status

approved