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A205059 Number of (n+1)X4 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing 1

%I #5 Mar 31 2012 12:37:04

%S 2830,111413,4502701,151143466,4798857522,132027608391,3385586913849,

%T 78835118572937,1727591828022295,35409057150817537,691266578954573825,

%U 12858328483865826072,230198722962101096179,3975668375450292897939

%N Number of (n+1)X4 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing

%C Column 3 of A205063

%H R. H. Hardin, <a href="/A205059/b205059.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 21 2012

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)