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A217272 Number of nX7 arrays of occupancy after each element moves to some horizontal or vertical neighbor 0
32, 142129, 402494400, 1117092569476, 3080781263731464, 8491624540729737796, 23397344246732649325860 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A217273

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A017093 A159412 A201987 * A017189 A159414 A094814

Adjacent sequences:  A217269 A217270 A217271 * A217273 A217274 A217275

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 29 2012

STATUS

approved

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Last modified October 15 09:55 EDT 2018. Contains 316211 sequences. (Running on oeis4.)