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A267954 Number of nX4 0..2 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order. 1

%I #4 Jan 22 2016 13:22:07

%S 11,726,30145,1414023,56103165,2290723921,87407239371,3343976341229,

%T 124140022659137,4592258225675297,167435268977631221,

%U 6080341495638232187,219161395227799839753,7874818737427465078729,281806381317852982386447

%N Number of nX4 0..2 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

%C Column 4 of A267957.

%H R. H. Hardin, <a href="/A267954/b267954.txt">Table of n, a(n) for n = 1..162</a>

%e Some solutions for n=3

%e ..0..1..0..2....0..0..1..0....0..1..2..0....0..1..2..0....0..1..0..1

%e ..1..2..1..0....0..1..1..2....0..1..0..0....2..0..2..2....1..0..1..0

%e ..1..2..1..2....1..2..0..1....1..0..2..1....1..0..0..1....1..0..1..1

%Y Cf. A267957.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 22 2016

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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)