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A235823
Number of (n+1)X(3+1) 0..3 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise
1
29902, 2623192, 207321076, 14397784435, 927626379839, 55289364866072, 3112236118041687, 166244206849724754, 8508471125500641715, 419299358482567595448, 20003897214743803270138, 927399724187482318211255
OFFSET
1,1
COMMENTS
Column 3 of A235824
LINKS
EXAMPLE
Some solutions for n=1
..0..1..1..2....1..1..2..0....1..2..1..2....2..2..2..3....1..0..3..0
..2..0..1..0....1..1..1..0....3..1..3..0....2..3..1..1....2..2..3..2
CROSSREFS
Sequence in context: A183852 A274358 A235826 * A235581 A224612 A233946
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 16 2014
STATUS
approved