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A233237 Number of nX6 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, diagonally or antidiagonally, 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 13:52:06

%S 452,1419889,5267525102,19645569858350,73288254642491677,

%T 273407904115337411320,1019972250198681748495759,

%U 3805096786515479736762977469,14195250676420681381695428272598

%N Number of nX6 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, diagonally or antidiagonally, 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 A233239

%H R. H. Hardin, <a href="/A233237/b233237.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 06 2013

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Last modified August 27 22:40 EDT 2024. Contains 375471 sequences. (Running on oeis4.)