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A237398 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock equal 7
256, 1314, 1314, 7172, 11988, 7172, 41062, 114034, 114034, 41062, 239176, 1153778, 1794402, 1153778, 239176, 1413864, 11725568, 30590608, 30590608, 11725568, 1413864, 8412540, 121195320, 514064312, 902019154, 514064312, 121195320 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......256.........1314...........7172.............41062..............239176

......1314........11988.........114034...........1153778............11725568

......7172.......114034........1794402..........30590608...........514064312

.....41062......1153778.......30590608.........902019154.........25829139276

....239176.....11725568......514064312.......25829139276.......1235023110530

...1413864....121195320.....8872195706......769041196608......62405831529234

...8412540...1254144270...152180119484....22613650645686....3084781518411320

..50339772..13055041806..2639996468928...676946049444764..156724811087291634

.302048100.135960274878.45688402987094.20153268873982042.7881021180947620852

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..97

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 38]

k=2: [order 97]

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A237235 A129539 A113877 * A237392 A205097 A205090

Adjacent sequences:  A237395 A237396 A237397 * A237399 A237400 A237401

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Feb 07 2014

STATUS

approved

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Last modified May 26 21:56 EDT 2022. Contains 354092 sequences. (Running on oeis4.)