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A250965 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element 9
170, 1592, 1592, 14423, 34988, 14423, 130025, 768855, 768855, 130025, 1172956, 17233753, 42534386, 17233753, 1172956, 10588744, 390286993, 2395598690, 2395598690, 390286993, 10588744, 95612685, 8862302446, 134817198768 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

......170.......1592.........14423...........130025.............1172956

.....1592......34988........768855.........17233753...........390286993

....14423.....768855......42534386.......2395598690........134817198768

...130025...17233753....2395598690.....333998523952......46264786072136

..1172956..390286993..134817198768...46264786072136...15830978769561242

.10588744.8862302446.7555575891628.6395621652233739.5432045141123489432

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..161

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 7]

k=2: [order 25]

k=3: [order 75]

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A206122 A259293 A262426 * A250958 A031614 A289648

Adjacent sequences:  A250962 A250963 A250964 * A250966 A250967 A250968

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Nov 29 2014

STATUS

approved

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Last modified June 27 17:46 EDT 2022. Contains 354896 sequences. (Running on oeis4.)