login
A235894
Number of (n+1)X(n+1) 0..2 arrays with the minimum plus the maximum equal to the lower median plus the upper median in every 2X2 subblock
0
33, 641, 21697, 1384257, 160019457, 35883075329, 14843231431681, 12202637534483457, 18568324609578868737, 57651220931356692262913
OFFSET
1,1
COMMENTS
Diagonal of A235902
EXAMPLE
Some solutions for n=3
..0..0..2..1....0..2..1..2....1..1..1..2....1..0..2..1....1..0..1..1
..1..1..1..0....0..2..1..0....2..0..2..1....1..2..0..1....2..1..0..0
..0..0..2..1....1..1..0..1....0..2..0..1....2..1..1..2....2..1..2..2
..1..1..1..2....2..0..1..0....2..0..2..1....1..2..0..1....2..1..0..0
CROSSREFS
Sequence in context: A252926 A225970 A004328 * A261486 A094760 A365645
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 16 2014
STATUS
approved