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A204967 Number of (n+2) X 6 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order. 1

%I #7 Jan 01 2024 18:46:01

%S 36522,1085013,31837899,916967622,26548318278,768548149208,

%T 22245382735903,643910842041150,18638431361258012,539502218649996908,

%U 15616268658553505055,452023741831342310802,13084141546692160795551

%N Number of (n+2) X 6 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order.

%C Column 4 of A204971.

%H R. H. Hardin, <a href="/A204967/b204967.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%Y Cf. A204971.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 21 2012

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)