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A251175 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having the minimum of its diagonal elements less than the absolute difference of its antidiagonal elements 8
136, 1192, 1192, 10950, 28598, 10950, 100462, 710438, 710438, 100462, 923568, 17822017, 49016166, 17822017, 923568, 8489391, 447045247, 3387331664, 3387331664, 447045247, 8489391, 78041038, 11217458242, 234762060017 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.....136........1192..........10950............100462...............923568

....1192.......28598.........710438..........17822017............447045247

...10950......710438.......49016166........3387331664.........234762060017

..100462....17822017.....3387331664......648299061766......124211482822101

..923568...447045247...234762060017...124211482822101....65874570824121892

.8489391.11217458242.16266032347068.23810611569424562.34940908062684870572

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..144

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 13]

k=2: [order 39]

EXAMPLE

Some solutions for n=2 k=4

..1..0..0..2..3....1..0..2..0..3....2..0..2..3..3....1..0..2..1..2

..0..0..2..1..2....0..2..2..3..0....0..2..3..3..0....0..2..1..2..1

..0..2..0..3..2....2..1..2..2..2....2..1..3..0..2....2..1..3..2..2

CROSSREFS

Sequence in context: A234169 A234162 A262091 * A251168 A023070 A015163

Adjacent sequences:  A251172 A251173 A251174 * A251176 A251177 A251178

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Nov 30 2014

STATUS

approved

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Last modified July 1 12:11 EDT 2022. Contains 354972 sequences. (Running on oeis4.)