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 A223238 Rolling icosahedron footprints: number of 6Xn 0..11 arrays starting with 0 where 0..11 label vertices of an icosahedron and every array movement to a horizontal, diagonal or antidiagonal neighbor moves along an icosahedral edge 1
 248832, 1856465, 842416625, 146259564725, 42210625593305, 9343721361109325, 2410480042269361205, 569856683384487837845, 141861478546517230929185, 34264186727962091778301265, 8425769874595179617059603645 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 6 of A223233 LINKS R. H. Hardin, Table of n, a(n) for n = 1..36 EXAMPLE Some solutions for n=3 ..0..6..0....0..6..0....0..6..0....0..6..0....0..6..0....0..6..0....0..6..0 ..0..6..0....0..6..0....0..6..0....0..6..0....0..6..0....0..6..0....0..6..0 ..2..6..0....0..6..0....0..6..0....0..6..0....2..6..0....4..6..0....2..6..0 ..0..6.10....0..7..5....0..5.10....2..1..0....4..6..4....4..2..0....0..6..2 .10..6.10....0..6..0...11..5.11....8..1..0....4..6..5....8..2..6....4..6..5 .10..4..2....0..7..0...11..5..6....8..1..0....5..6.10....1..2..1....4..6.10 Vertex neighbors: 0 -> 1 2 5 6 7 1 -> 0 2 3 7 8 2 -> 0 1 4 6 8 3 -> 1 7 8 9 11 4 -> 2 6 8 9 10 5 -> 0 6 7 10 11 6 -> 0 2 4 5 10 7 -> 0 1 3 5 11 8 -> 1 2 3 4 9 9 -> 3 4 8 10 11 10 -> 4 5 6 9 11 11 -> 3 5 7 9 10 CROSSREFS Sequence in context: A229872 A172796 A268842 * A017405 A109691 A017525 Adjacent sequences: A223235 A223236 A223237 * A223239 A223240 A223241 KEYWORD nonn AUTHOR R. H. Hardin Mar 18 2013 STATUS approved

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Last modified August 5 15:49 EDT 2024. Contains 374950 sequences. (Running on oeis4.)