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 A223509 Petersen graph (3,1) coloring a rectangular array: number of 6Xn 0..5 arrays where 0..5 label nodes of a graph with edges 0,1 0,3 3,5 3,4 1,2 1,4 4,5 2,0 2,5 and every array movement to a horizontal, diagonal or antidiagonal neighbor moves along an edge of this graph, with the array starting at 0 1
 7776, 31307, 3528715, 291545903, 27465794119, 2519813048575, 234215122981463, 21722081604000233, 2017473470471496373, 187345647840479535879, 17400111813793245517801, 1616059549379820468437485 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 6 of A223504 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=3 ..0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0 ..0..2..0....0..1..2....0..2..0....0..1..0....0..1..2....0..1..0....0..1..4 ..0..2..0....2..1..2....1..2..1....2..1..0....0..1..4....2..1..2....2..1..2 ..5..3..0....4..5..2....1..2..0....4..1..0....4..1..4....2..1..4....4..5..4 ..0..2..5....4..5..2....0..2..1....4..3..4....4..1..4....2..1..2....2..1..2 ..1..2..0....4..1..4....1..2..1....4..1..4....0..1..4....4..1..0....2..5..4 CROSSREFS Sequence in context: A123990 A176375 A210116 * A187355 A190465 A064782 Adjacent sequences: A223506 A223507 A223508 * A223510 A223511 A223512 KEYWORD nonn AUTHOR R. H. Hardin Mar 21 2013 STATUS approved

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Last modified May 21 02:29 EDT 2024. Contains 372720 sequences. (Running on oeis4.)