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A250960
Number of (n+1)X(3+1) 0..3 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element
1
14423, 768855, 42534386, 2395598690, 134817198768, 7555575891628, 422498268460458, 23613315121132337, 1319861026495444120, 73783397172682901663, 4124914218135502826007, 230608643084497820614344
OFFSET
1,1
COMMENTS
Column 3 of A250965
FORMULA
Empirical recurrence of order 75 (see link above)
EXAMPLE
Some solutions for n=1
..0..0..3..3....3..3..0..0....3..2..3..1....2..3..1..0....2..0..2..1
..2..0..1..1....2..3..3..2....1..1..2..1....0..2..1..3....1..0..3..1
CROSSREFS
Sequence in context: A166371 A234487 A234977 * A238060 A210050 A203815
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2014
STATUS
approved