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A222351 Number of (n+7)X1 arrays of occupancy after each element moves up to +-n places including 0 0
987, 12087, 69142, 312019, 1284780, 5094040, 19896840, 77321250 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A222345

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

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

..0....1....0....2....0....0....0....1....2....1....2....4....1....0....0....0

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

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

CROSSREFS

Sequence in context: A069299 A248352 A072316 * A221696 A221128 A045733

Adjacent sequences:  A222348 A222349 A222350 * A222352 A222353 A222354

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 16 2013

STATUS

approved

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Last modified June 25 07:37 EDT 2022. Contains 354835 sequences. (Running on oeis4.)