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A198626 Number of nX7 0..5 arrays with values 0..5 introduced in row major order and each element equal to at least one horizontal or vertical neighbor 0
11, 28009, 102181788, 713917706692, 5291151764465150 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A198627

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A198668 A346206 A198707 * A343119 A295176 A337248

Adjacent sequences:  A198623 A198624 A198625 * A198627 A198628 A198629

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 27 2011

STATUS

approved

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Last modified September 27 03:56 EDT 2022. Contains 357052 sequences. (Running on oeis4.)