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%I #4 Mar 14 2016 09:32:09
%S 0,3612,3280968,308256072,12712991544,233617868244,2749271140656,
%T 22371873866256,139822582266000,711923728070220,3052254429614520,
%U 11503596191487192,38443036761706248,117645141262704132
%N Number of 5X5X5 triangular 0..n arrays with some element plus some adjacent element totalling n exactly once.
%C Row 5 of A270256.
%H R. H. Hardin, <a href="/A270260/b270260.txt">Table of n, a(n) for n = 1..25</a>
%e Some solutions for n=2
%e ......1..........2..........1..........2..........1..........1..........2
%e .....2.1........1.2........2.2........2.2........0.0........0.0........2.2
%e ....2.2.2......2.2.2......2.2.2......2.1.2......0.1.0......0.0.0......1.2.2
%e ...2.2.2.1....1.2.2.2....1.2.2.1....2.2.2.1....1.0.0.1....0.1.1.0....2.2.2.2
%e ..2.2.2.2.2..1.2.1.2.2..2.2.1.0.0..2.1.2.2.1..2.1.0.0.0..1.0.0.0.0..2.1.1.2.2
%Y Cf. A270256.
%K nonn
%O 1,2
%A _R. H. Hardin_, Mar 14 2016
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