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Number of nX7 0..7 arrays with every nonzero element less than or equal to some NW, E or S neighbor
0

%I #4 Mar 31 2012 12:36:56

%S 1,508333573,288459211010972,52958564655658086303,

%T 7471149797595047377690310,1180830173140129486377399584664

%N Number of nX7 0..7 arrays with every nonzero element less than or equal to some NW, E or S neighbor

%C Column 7 of A203262

%e Some solutions for n=4

%e ..5..6..3..1..2..0..1....2..5..2..7..3..2..5....5..0..6..3..1..5..1

%e ..7..6..3..6..7..2..4....3..5..3..7..3..2..7....5..3..6..3..4..5..6

%e ..7..7..6..5..7..4..4....7..5..0..7..6..7..7....7..7..6..0..6..6..6

%e ..0..1..2..2..7..7..4....7..7..1..7..7..4..7....0..7..6..1..0..1..6

%K nonn

%O 1,2

%A _R. H. Hardin_ Dec 30 2011