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A233228 Number of nX6 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, diagonally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order 1

%I #4 Dec 06 2013 06:10:45

%S 452,616454,1142726121,2131764323784,3987381898274165,

%T 7462045099033787721,13966565723905519312347,

%U 26141937448057102691381982,48931705939631684079610274144,91589174857476172550555533830040

%N Number of nX6 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, diagonally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order

%C Column 6 of A233230

%H R. H. Hardin, <a href="/A233228/b233228.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 06 2013

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Last modified April 19 02:28 EDT 2024. Contains 371782 sequences. (Running on oeis4.)