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A205214 Number of (n+1)X8 0..2 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards 1

%I #5 Mar 31 2012 12:37:05

%S 588254,157776973,18436719991,3665236234914,529074884034056,

%T 94001523982653714,14824580873279399161,2521716770585587444896,

%U 410878280990609812001564,68767021679480913032579866

%N Number of (n+1)X8 0..2 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards

%C Column 7 of A205215

%H R. H. Hardin, <a href="/A205214/b205214.txt">Table of n, a(n) for n = 1..204</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 23 2012

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Last modified September 16 00:43 EDT 2024. Contains 375959 sequences. (Running on oeis4.)