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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.
1
14420, 684282, 29606864, 1373159910, 62993589692, 2917193420904, 134849510289180, 6244676072091248, 289057714655429616, 13385783904946756226, 619797903129424615438, 28701526499023348815636
OFFSET
1,1
COMMENTS
Column 3 of A234982.
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2014
STATUS
approved