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A214535 Number of nXnXn triangular 0..3 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and every horizontal row having the same average value 0

%I #3 Jul 20 2012 11:42:07

%S 4,8,38,344,5360,141470,6042900,420213820,47817344852,8897304579262

%N Number of nXnXn triangular 0..3 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and every horizontal row having the same average value

%C Column 3 of A214540

%e Some solutions for n=4

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

%e ....2.2......1.1......1.1......1.3......2.2......1.1......0.2......2.2

%e ...1.3.2....1.2.0....1.1.1....2.1.3....1.3.2....2.1.0....1.0.2....1.2.3

%e ..3.0.3.2..1.2.1.0..2.1.1.0..3.0.2.3..0.3.3.2..0.3.0.1..2.0.0.2..2.0.3.3

%K nonn

%O 1,1

%A _R. H. Hardin_ Jul 20 2012

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Last modified April 19 08:45 EDT 2024. Contains 371782 sequences. (Running on oeis4.)