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A236611 Number of (n+1)X(1+1) 0..2 arrays colored with the maximum plus the upper median of every 2X2 subblock 1

%I #5 Jan 29 2014 08:10:18

%S 81,390,1885,8876,41473,193372,912752,4290712,20084444,93983432,

%T 442021140,2076094832,9730606384,45599799840,214146503952,

%U 1005291748992,4714559632016,22107730227904,103762018758272,486963243432832

%N Number of (n+1)X(1+1) 0..2 arrays colored with the maximum plus the upper median of every 2X2 subblock

%C Column 1 of A236618

%H R. H. Hardin, <a href="/A236611/b236611.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 16*a(n-3) +280*a(n-4) +376*a(n-5) +932*a(n-6) +1120*a(n-7) -1456*a(n-8) -1696*a(n-9) -768*a(n-10) -1152*a(n-11) for n>13

%e Some solutions for n=5

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 29 2014

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Last modified April 24 03:08 EDT 2024. Contains 371918 sequences. (Running on oeis4.)