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A202987 Number of nX7 0..2 arrays with every nonzero element less than or equal to some NW, E or S neighbor 1

%I #5 Mar 31 2012 12:36:54

%S 1,44885,52328419,31806596079,20459663726506,14227778139316647,

%T 9811910575029966643,6702883342270345907211,4584179551226559729177506,

%U 3138573547685403657998819163,2148457945272985920313446628040

%N Number of nX7 0..2 arrays with every nonzero element less than or equal to some NW, E or S neighbor

%C Column 7 of A202988

%H R. H. Hardin, <a href="/A202987/b202987.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Dec 26 2011

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Last modified March 28 16:58 EDT 2024. Contains 371254 sequences. (Running on oeis4.)