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 A206845 Number of 7Xn 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal 0

%I #4 Mar 31 2012 12:37:13

%S 14124,199487376,1709151563122,15348900754966668,

%T 138717281035824236746,1253153235463965319380998

%N Number of 7Xn 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal

%C Row 7 of A206838

%e Some solutions for n=5

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 13 2012

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Last modified June 14 11:26 EDT 2024. Contains 373397 sequences. (Running on oeis4.)