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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
1
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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2014
STATUS
approved