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A205203 Number of (n+1) X 6 0..2 arrays with the permanents of 2 X 2 subblocks nondecreasing rightwards and downwards. 1

%I #7 May 21 2021 14:38:08

%S 68508,7041879,560385415,37528599466,2353566223899,131318571494136,

%T 7124820848193635,363421762269355745,18279521846710009659,

%U 892510363274222334088,43281103413691988927914,2070850702594997623312733

%N Number of (n+1) X 6 0..2 arrays with the permanents of 2 X 2 subblocks nondecreasing rightwards and downwards.

%C Column 5 of A205206.

%H R. H. Hardin, <a href="/A205203/b205203.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A205206.

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 23 2012

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Last modified March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)