A223439 Generalized Petersen graph (8,2) coloring a rectangular array: number of nX7 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 or vertical neighbor moves along an edge of this graph

11664, 1180256, 179532768, 33277934848, 6790055219264, 1445484467129440, 313233804577725904, 68373044838570536416, 14968850924351337707600, 3281073242585313313486816, 719543293998612435740651440

Offset

1,1

Comments

Column 7 of A223440

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=3
..8..0..8.14..8.14..8....8..0..8.14.12.10.12....8..0..8.10.12.14..8
..0..8.14..8.10..8.10....0..8.14..8.10.12.14....0..8.10..8.14.12.10
..8..0..8..0..8.10..2....8..0..8.10..8.10..8....8..0..8.14.12.10..8

Crossrefs

Sequence in context: A352330 A203821 A223598 * A223691 A254770 A254777

Adjacent sequences: A223436 A223437 A223438 * A223440 A223441 A223442

Keyword

nonn

Author

R. H. Hardin Mar 20 2013

Status

approved