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 A186590 Number of (n+3)X(n+3) 0..3 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock 0
 4294967296, 2703, 33006, 2526165, 11494293, 16898709, 17395749, 20385141, 27395301, 42268437, 70928997, 139324629, 471686661, 1278076821, 2789296725 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A186599 LINKS EXAMPLE Some solutions for 5X5 ..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..3..3 ..2..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..2 ..3..2..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..3 ..2..3..2..0..0....1..0..0..0..0....2..1..0..0..0....0..0..0..0..0 ..0..2..3..2..0....2..3..0..0..0....1..3..0..0..0....0..0..0..0..0 CROSSREFS Sequence in context: A198161 A244064 A255344 * A186599 A186591 A281576 Adjacent sequences:  A186587 A186588 A186589 * A186591 A186592 A186593 KEYWORD nonn AUTHOR R. H. Hardin Feb 24 2011 STATUS approved

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