The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A223605 Petersen graph (8,2) coloring a rectangular array: number of 7 X n 0..15 arrays where 0..15 label nodes of a graph with edges 0,1 0,8 8,14 8,10 1,2 1,9 9,15 9,11 2,3 2,10 10,12 3,4 3,11 11,13 4,5 4,12 12,14 5,6 5,13 13,15 6,7 6,14 7,0 7,15 and every array movement to a horizontal, diagonal or antidiagonal neighbor moves along an edge of this graph. 1
 268435456, 1180256, 236213312, 20631729648, 3355919411936, 488183756623568, 78546923445668960, 12456911118159504464, 2003721183655242155360, 321631735635728311838256, 51731199109756440589448464 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 7 of A223599. LINKS R. H. Hardin, Table of n, a(n) for n = 1..28 EXAMPLE Some solutions for n=3 ..0..8..0....0..8..0....0..8..0....0..8..0....0..8..0....0..8..0....0..8..0 ..0..8..0....0..8..0....0..8..0....0..8..0....0..8..0....0..8..0....0..8..0 ..0..8..0...10..8.10....0..8..0...10..8.10....0..8..0...10..8.10...14..8..0 ..0..8..0...14.12.10....0..7..0....0..8.10....0..1..0...10..2.10...14..8.10 ..0..1..0...10.12.14...15..7.15...14..8.10....2..1..2...10..2..1...10.12.10 ..0..7..0...10.12.10....6..7.15...14..8.10....9..1..0...10..2..3....4.12.14 ..0..7.15....4.12.10....6..7.15....0..8.14....0..1..2...10..2.10...14.12.10 CROSSREFS Cf. A223599. Sequence in context: A295477 A358484 A011578 * A223698 A195237 A194936 Adjacent sequences: A223602 A223603 A223604 * A223606 A223607 A223608 KEYWORD nonn AUTHOR R. H. Hardin, Mar 23 2013 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 4 12:58 EDT 2024. Contains 374921 sequences. (Running on oeis4.)