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A207553 Number of 5 X n 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal. 1

%I #7 Apr 21 2021 14:00:17

%S 216,46656,7104784,1033847229,151596413811,22310125127129,

%T 3281119335987704,482409110595369417,70913221471442436735,

%U 10423970912644421821948,1532250473752733562395242

%N Number of 5 X n 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal.

%C Row 5 of A207550.

%H R. H. Hardin, <a href="/A207553/b207553.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A207550.

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 18 2012

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Last modified September 9 01:17 EDT 2024. Contains 375759 sequences. (Running on oeis4.)