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A271033 Number of nXnXn triangular 0..7 arrays with some element less than a w, nw or ne neighbor exactly once. 0

%I #3 Mar 29 2016 07:45:26

%S 0,168,10164,535106,28658242,1610555756,95420380090,5945425725202,

%T 387907415514308,26381892105883904

%N Number of nXnXn triangular 0..7 arrays with some element less than a w, nw or ne neighbor exactly once.

%C Column 7 of A271034.

%e Some solutions for n=3

%e ....0......4......1......3......0......5......1......1......1......2......0

%e ...0.4....0.4....4.1....4.4....0.0....2.6....0.2....1.2....4.3....0.3....0.1

%e ..0.0.6..0.4.6..5.6.6..7.4.7..6.2.3..2.6.6..0.7.7..3.2.6..5.5.7..1.5.5..5.1.4

%Y Cf. A271034.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 29 2016

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Last modified March 29 05:43 EDT 2024. Contains 371264 sequences. (Running on oeis4.)