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A210106 Number of (n+1) X 8 0..2 arrays with every 2 X 2 subblock having one or three distinct values, and new values 0..2 introduced in row major order. 1

%I #12 Oct 11 2014 02:13:59

%S 58231,5435250,472285295,41604910322,3662188386511,322655579663298,

%T 28434309064956831,2506262549390927474,220926801220665130255,

%U 19475675574198150161794,1716913388047410911557919

%N Number of (n+1) X 8 0..2 arrays with every 2 X 2 subblock having one or three distinct values, and new values 0..2 introduced in row major order.

%C Column 7 of A210107.

%H R. H. Hardin, <a href="/A210106/b210106.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4:

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

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

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

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

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

%Y Cf. A210107.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 17 2012

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Last modified April 24 15:18 EDT 2024. Contains 371960 sequences. (Running on oeis4.)