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%I #5 Mar 31 2012 12:36:20
%S 2,8,48,537,10457,350996,20588719,2097220139,371447058811,
%T 114409134039376,61266947593618202,57047805341101073322,
%U 92361175252476980554309,260002156555728478882116533
%N Number of nXnXn triangular binary arrays with every 1 adjacent to at most 2 other 1s
%H R. H. Hardin, <a href="/A192411/b192411.txt">Table of n, a(n) for n = 1..17</a>
%e Some solutions for 5X5X5
%e ......1..........0..........1..........1..........0..........0..........1
%e .....1.0........0.1........0.1........0.0........0.1........0.0........0.1
%e ....1.0.0......0.1.0......0.0.1......0.0.1......0.0.1......0.0.0......0.1.0
%e ...0.0.1.0....0.0.0.0....0.0.0.1....0.1.1.0....1.0.0.0....0.0.1.0....0.0.0.1
%e ..0.0.0.0.1..0.1.1.1.1..1.1.0.0.1..0.1.0.0.0..0.0.1.0.1..0.1.0.0.1..0.0.1.0.0
%K nonn
%O 1,1
%A _R. H. Hardin_ Jun 30 2011
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