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A233717 T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 14 (14 maximizes T(1,1)) 9
96, 444, 444, 1992, 2624, 1992, 9100, 16004, 16004, 9100, 41256, 103152, 136960, 103152, 41256, 187780, 662008, 1291820, 1291820, 662008, 187780, 853104, 4295540, 12203480, 18407992, 12203480, 4295540, 853104, 3879380, 27795204, 117736088 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......96........444..........1992............9100.............41256

......444.......2624.........16004..........103152............662008

.....1992......16004........136960.........1291820..........12203480

.....9100.....103152.......1291820........18407992.........265416076

....41256.....662008......12203480.......265416076........5886720368

...187780....4295540.....117736088......3941219232......135854016892

...853104...27795204....1132387344.....58415215048.....3129633625144

..3879380..180350552...10952782784....873119150720....72969887485252

.17632896.1168954616..105752474712..13022224846292..1696131249929176

.80165004.7582779720.1022915229556.194807536465768.39606967139987452

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..143

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 8]

k=2: [order 27]

k=3: [order 75]

EXAMPLE

Some solutions for n=3 k=4

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

..1..3..3..3..3....1..3..2..3..2....1..1..4..1..1....0..1..4..1..1

..1..0..2..0..1....0..0..0..3..0....0..3..4..3..4....3..3..3..3..0

..1..3..3..3..1....1..3..1..3..1....0..1..4..1..1....0..1..0..2..0

CROSSREFS

Sequence in context: A304515 A233818 A233811 * A233710 A234083 A234076

Adjacent sequences:  A233714 A233715 A233716 * A233718 A233719 A233720

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Dec 15 2013

STATUS

approved

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Last modified October 21 20:44 EDT 2019. Contains 328315 sequences. (Running on oeis4.)