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A237300
Number of (n+1)X(n+1) 0..2 arrays with the upper median of every 2X2 subblock equal
1
81, 5433, 1415117, 2009833839, 12453653921528, 375668394257449657, 52886756103540949611731, 35743217612825270842283657485, 114859451539181968613471272133306734
OFFSET
1,1
COMMENTS
Diagonal of A237308
LINKS
EXAMPLE
Some solutions for n=2
..0..2..2....0..1..1....1..0..2....0..2..0....0..1..2....2..0..1....2..2..2
..0..2..0....0..1..2....2..2..0....2..2..0....1..1..1....0..2..2....2..2..0
..2..2..0....1..1..1....0..0..2....0..0..2....1..1..0....1..2..0....2..1..2
CROSSREFS
Sequence in context: A206406 A238172 A260858 * A237937 A060349 A212706
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 2014
STATUS
approved