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 A186551 1/8192 the number of (n+2) X 7 0..3 arrays with each 3 X 3 subblock trace equal to some horizontal or vertical neighbor 3 X 3 subblock trace. 0
 3090668, 6215002266, 5253540132125, 5541254050323697, 5484853650034152292, 5583822993675095945553 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A186553. LINKS Table of n, a(n) for n=1..6. EXAMPLE Some solutions for 4 X 7 ..0..0..0..1..0..2..2....0..0..0..3..3..1..2....0..0..0..2..1..3..1 ..0..0..0..0..1..2..1....0..0..0..0..0..1..1....0..0..0..0..3..3..3 ..0..0..0..0..0..1..1....0..0..0..0..0..2..1....0..0..0..0..0..0..1 ..0..0..0..0..0..3..1....0..0..0..0..0..3..1....0..0..0..0..0..0..2 CROSSREFS Cf. A186553. Sequence in context: A190462 A282746 A212854 * A172606 A234151 A067899 Adjacent sequences: A186548 A186549 A186550 * A186552 A186553 A186554 KEYWORD nonn AUTHOR R. H. Hardin Feb 23 2011 STATUS approved

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Last modified May 19 08:13 EDT 2024. Contains 372666 sequences. (Running on oeis4.)