A234977 Number of (n+1) X (3+1) 0..4 arrays with every 2 X 2 subblock having the sum of the absolute values of the edge differences equal to 8.

14420, 684282, 29606864, 1373159910, 62993589692, 2917193420904, 134849510289180, 6244676072091248, 289057714655429616, 13385783904946756226, 619797903129424615438, 28701526499023348815636

Offset

1,1

Comments

Column 3 of A234982.

Links

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

Example

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

Crossrefs

Cf. A234982.

Sequence in context: A144649 A166371 A234487 * A250960 A238060 A210050

Adjacent sequences: A234974 A234975 A234976 * A234978 A234979 A234980

Keyword

nonn

Author

R. H. Hardin, Jan 02 2014

Status

approved