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T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock
6

%I #4 Feb 03 2014 05:38:30

%S 81,484,484,2928,4526,2928,17644,42300,42300,17644,106528,395028,

%T 612776,395028,106528,641736,3675408,8844156,8844156,3675408,641736,

%U 3871696,34334240,127825204,199693088,127825204,34334240,3871696,23356112

%N T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock

%C Table starts

%C ........81.........484.........2928.........17644........106528........641736

%C .......484........4526........42300........395028.......3675408......34334240

%C ......2928.......42300.......612776.......8844156.....127825204....1855507536

%C .....17644......395028......8844156.....199693088....4496960188..102542293272

%C ....106528.....3675408....127825204....4496960188..158494245568.5671827576224

%C ....641736....34334240...1855507536..102542293272.5671827576224

%C ...3871696...320714572..26933704424.2324982572036

%C ..23356112..2993549732.389584703724

%C .140860224.27915633640

%C .849369952

%H R. H. Hardin, <a href="/A237082/b237082.txt">Table of n, a(n) for n = 1..60</a>

%F Empirical for column k:

%F k=1: [linear recurrence of order 10]

%F k=2: [order 35]

%e Some solutions for n=2 k=4

%e ..0..1..1..1..0....0..0..1..2..0....0..0..1..0..0....0..0..0..1..2

%e ..1..1..1..0..2....0..0..2..2..0....2..1..0..0..2....1..2..0..1..1

%e ..1..1..2..1..2....1..0..0..0..0....2..0..0..2..0....1..2..2..2..2

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_, Feb 03 2014

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Last modified September 21 19:09 EDT 2024. Contains 376087 sequences. (Running on oeis4.)