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A208352 Number of nX7 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors) 0
715, 629860, 23658861, 2280287753, 340596199800, 52428246114853 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A208353

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=4

..0..0..0..1..2..0..3....0..0..0..0..0..0..0....0..0..0..1..0..1..2

..3..2..3..1..1..0..1....1..1..1..2..1..1..1....3..2..1..3..3..2..3

..1..3..2..3..2..0..2....2..1..2..2..3..3..2....2..1..2..3..2..1..0

..0..1..3..2..3..2..3....3..3..0..0..3..3..2....0..2..0..2..1..0..0

CROSSREFS

Sequence in context: A266107 A030537 A140919 * A223061 A208863 A208871

Adjacent sequences:  A208349 A208350 A208351 * A208353 A208354 A208355

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 25 2012

STATUS

approved

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Last modified October 22 18:38 EDT 2018. Contains 316500 sequences. (Running on oeis4.)