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A223795
Number of n X n 0..3 arrays with rows and antidiagonals unimodal
1
4, 256, 110116, 151310069, 453578376041, 2401987689157097, 19618352087687868206, 225161556703631799074083, 3396567436573176749810085543, 64088930629934993395801694394536
OFFSET
1,1
COMMENTS
Diagonal of A223801
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0....0..1..1....2..1..1....2..3..1....2..1..0....2..1..1....2..3..2
..3..0..0....0..2..0....0..3..2....0..3..0....0..2..3....0..3..3....1..3..1
..0..0..0....1..2..2....1..2..3....0..0..1....3..3..1....0..2..2....3..3..1
CROSSREFS
Sequence in context: A223844 A122249 A326556 * A207275 A207473 A223658
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 27 2013
STATUS
approved