Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
A220202
Number of n X 6 arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 n X 6 array.
0
56, 333, 10762, 264239, 6316576, 154837661, 3725275252
OFFSET
1,1
COMMENTS
Column 6 of A220204.
EXAMPLE
Some solutions for n=3
..2..2..0..0..1..1....3..3..1..1..0..0....1..0..0..0..0..0....1..0..0..1..0..0
..2..2..0..0..0..1....3..3..2..1..0..0....1..0..0..0..0..0....1..0..0..0..1..0
..3..3..2..0..0..3....3..3..2..2..2..0....3..3..0..0..0..3....2..1..0..0..2..1
CROSSREFS
Cf. A220204.
Sequence in context: A220015 A005912 A264581 * A104677 A156375 A219718
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 07 2012
STATUS
approved