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 A207581 Number of nX7 0..3 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically 0
 12747, 162486009, 1495251731248, 13535979641561061, 122196720716205612586, 1102841040771965457584054 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A207582 LINKS Table of n, a(n) for n=1..6. EXAMPLE Some solutions for n=4 ..1..0..2..1..0..3..3....2..1..2..3..0..1..2....1..0..0..0..0..3..1 ..3..3..3..3..1..3..1....0..0..1..3..0..2..0....2..1..0..1..3..1..3 ..3..0..0..1..0..2..0....3..0..2..0..3..1..1....3..1..2..3..0..1..0 ..1..0..2..0..1..1..1....2..0..2..0..1..0..3....0..1..0..0..1..1..3 CROSSREFS Sequence in context: A206979 A206973 A206576 * A207056 A210105 A235720 Adjacent sequences: A207578 A207579 A207580 * A207582 A207583 A207584 KEYWORD nonn AUTHOR R. H. Hardin Feb 19 2012 STATUS approved

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Last modified October 4 08:53 EDT 2023. Contains 365873 sequences. (Running on oeis4.)