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A203926
Number of (n+1)X(n+1) 0..5 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements
0
396, 106596, 140120856, 1012872412476, 41849462653189056, 10145256726122341001496
OFFSET
1,1
COMMENTS
Diagonal of A203934
EXAMPLE
Some solutions for n=4
..2..2..5..4..1....5..4..0..2..4....1..0..1..2..3....3..5..5..3..0
..0..2..2..5..4....5..5..4..0..2....4..1..5..1..2....0..3..5..5..3
..3..0..2..2..5....1..5..5..4..0....2..4..1..5..1....4..0..3..5..5
..4..3..0..2..2....3..1..5..5..4....5..2..4..1..4....2..4..0..3..5
..3..3..3..0..2....0..3..1..5..5....5..5..2..4..0....4..4..4..0..3
CROSSREFS
Sequence in context: A092720 A230732 A034621 * A270842 A074483 A023326
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 08 2012
STATUS
approved