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A217345 Number of n X 7 arrays of occupancy after each element moves to some horizontal or vertical neighbor but without 2-loops. 0
0, 4367, 8399702, 12350550690, 16858052804062, 22467362744958042 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 7 of A217346.
LINKS
Table of n, a(n) for n=1..6.
EXAMPLE
Some solutions for n=3
..0..1..0..2..1..1..1....0..1..0..1..1..2..1....0..1..0..1..1..1..1
..0..2..2..2..1..0..2....0..1..3..3..1..0..1....0..2..1..1..2..2..2
..1..2..1..0..2..0..0....1..1..1..1..2..0..0....1..1..0..1..1..1..1
CROSSREFS
Cf. A217346.
Sequence in context: A031564 A359490 A347603 * A140937 A327789 A043598
Adjacent sequences: A217342 A217343 A217344 * A217346 A217347 A217348
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 01 2012
STATUS
approved

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Last modified August 30 07:09 EDT 2024. Contains 375532 sequences. (Running on oeis4.)