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A237092 Number of (n+1) X (1+1) 0..2 arrays with the maximum plus the lower median minus the upper median of every 2 X 2 subblock equal. 1

%I #6 Jun 26 2022 04:08:59

%S 81,303,1178,4783,19735,83052,352077,1509309,6498030,28174611,

%T 122516471,535232028,2342989133,10287655021,45234855966,199291092499,

%U 878860456823,3880668135436,17146466326573,75822725082413,335437962362510

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

%C Column 1 of A237099.

%H R. H. Hardin, <a href="/A237092/b237092.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 5*a(n-1) +24*a(n-2) -133*a(n-3) -161*a(n-4) +1148*a(n-5) +166*a(n-6) -3580*a(n-7) +364*a(n-8) +4024*a(n-9) -48*a(n-10) -1120*a(n-11).

%e Some solutions for n=5

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

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

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

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

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

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

%Y Cf. A237099.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 03 2014

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)