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 A186571 Number of (n+2)X(n+2) 0..6 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock 0
 40353607, 2295, 155811, 6144163, 20145619, 24109915, 33341515, 63091963, 185353627, 1030573051, 4642181947, 16031111611 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A186572 LINKS EXAMPLE Some solutions for 4X4 ..5..1..4..5....0..6..6..0....0..0..0..0....2..0..0..0....0..1..4..3 ..4..5..1..4....3..0..6..6....4..0..0..0....0..0..0..0....0..0..1..4 ..1..4..5..1....3..3..0..6....1..4..0..0....0..0..0..0....0..0..0..1 ..5..1..4..5....0..3..3..0....1..1..4..0....0..0..0..4....0..0..0..0 CROSSREFS Sequence in context: A218390 A186617 A186960 * A186572 A016929 A016989 Adjacent sequences:  A186568 A186569 A186570 * A186572 A186573 A186574 KEYWORD nonn AUTHOR R. H. Hardin Feb 23 2011 STATUS approved

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Last modified December 3 20:35 EST 2021. Contains 349468 sequences. (Running on oeis4.)