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A206502 Number of nX5 0..7 arrays with no element equal to another within a city block distance of two, and new values 0..7 introduced in row major order 0
5, 481, 178998, 83045488, 38638317841 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A206503

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=4

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

..2..3..0..1..2....2..3..4..5..6....2..3..4..5..2....2..3..0..1..2

..4..5..6..4..7....1..5..7..1..2....4..0..1..6..3....4..5..6..7..3

..0..7..1..5..3....0..2..3..0..4....1..2..3..7..4....1..7..2..0..4

CROSSREFS

Sequence in context: A024071 A321939 A198978 * A198249 A160363 A268113

Adjacent sequences: A206499 A206500 A206501 * A206503 A206504 A206505

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 08 2012

STATUS

approved

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Last modified February 2 03:35 EST 2023. Contains 359997 sequences. (Running on oeis4.)