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 A253486 Number of (5+1)X(n+1) 0..2 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically 1
 187704, 13347930, 1029772234, 78704951512, 6038749847806, 462971719837062, 35518545028273216, 2724284315820353036, 208979165632398419724, 16029897424341313070302, 1229615670749498056544226 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 5 of A253482 LINKS R. H. Hardin, Table of n, a(n) for n = 1..103 EXAMPLE Some solutions for n=1 ..1..1....1..0....0..1....1..0....0..1....1..1....1..0....0..1....1..0....1..1 ..1..0....0..2....1..1....0..1....0..1....1..2....0..1....1..0....2..0....0..1 ..0..1....0..1....0..1....1..1....2..0....2..0....0..0....2..2....0..0....0..1 ..2..1....0..0....2..1....0..1....2..0....0..2....0..2....0..2....2..0....1..0 ..0..2....2..2....0..2....0..0....0..1....2..0....0..1....1..1....1..0....1..2 ..2..1....2..2....2..1....2..1....1..2....0..2....1..0....2..2....1..0....0..1 CROSSREFS Sequence in context: A151422 A250541 A251798 * A253481 A186137 A233715 Adjacent sequences: A253483 A253484 A253485 * A253487 A253488 A253489 KEYWORD nonn AUTHOR R. H. Hardin, Jan 02 2015 STATUS approved

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Last modified May 26 19:31 EDT 2024. Contains 372844 sequences. (Running on oeis4.)