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 A205058 Number of (n+1)X3 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 491,7572,111413,1383154,16383311,175923930,1825712439,18040920199,

%T 174834354143,1658203154833,15589489658454,145407627330028,

%U 1352240865751568,12547362532350341,116355015072768773

%N Number of (n+1)X3 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing

%C Column 2 of A205063

%H R. H. Hardin, <a href="/A205058/b205058.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 21 2012

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Last modified June 2 17:31 EDT 2023. Contains 363100 sequences. (Running on oeis4.)