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A250612
Number of (n+1)X(n+1) 0..2 arrays with nondecreasing maximum of every two consecutive values in every row and column
0
81, 6166, 1690656, 1223112064, 2643367969909, 16037155132964687, 287962971695057053653, 15262784987977280564078690
OFFSET
1,1
COMMENTS
Diagonal of A250620
EXAMPLE
Some solutions for n=2
..1..1..1....1..2..0....0..1..2....1..2..1....2..2..1....0..1..0....1..1..1
..0..2..0....1..0..1....2..1..2....2..2..0....2..2..0....1..2..1....2..2..1
..1..0..1....0..2..0....1..0..1....1..1..1....1..2..1....2..0..2....0..1..0
CROSSREFS
Sequence in context: A036354 A205887 A205199 * A228974 A178513 A016948
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 26 2014
STATUS
approved