A234981 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

87941706, 115047739004, 134849510289180, 191417616710931012, 270097938511601692116, 392106856447778173931430, 570208378092719094299657992, 834762291450956511667124577786

Offset

1,1

Comments

Column 7 of A234982

Links

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

Example

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

Crossrefs

Sequence in context: A344804 A003825 A114259 * A054434 A164850 A253269

Adjacent sequences: A234978 A234979 A234980 * A234982 A234983 A234984

Keyword

nonn

Author

R. H. Hardin, Jan 02 2014

Status

approved