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A236947
Number of (n+1)X(6+1) 0..3 arrays with the maximum of every 2X2 subblock equal
1
50119046, 302691231316, 1323313139705714, 6794451721009466204, 32488935392023264106410, 160577378511458058360114308, 781823560338383397085729582626, 3832895458274770553771655475955180
OFFSET
1,1
COMMENTS
Column 6 of A236949
FORMULA
Empirical recurrence of order 55 (see link above)
EXAMPLE
Some solutions for n=1
..0..0..0..0..2..3..3....0..0..0..0..0..1..3....0..0..0..0..2..1..0
..1..3..0..3..3..0..2....3..1..3..2..3..2..3....0..2..1..2..1..1..2
CROSSREFS
Sequence in context: A271020 A358018 A227797 * A348069 A375351 A080796
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 01 2014
STATUS
approved