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A221085
Number of n X 6 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor.
1
16, 7921, 3538161, 1572836281, 698931112441, 310569670802169, 137999718103495689, 61319169929186096841, 27246714089760026142649, 12106872439344182585456281, 5379597618528088878788410281, 2390383694455993267729378192681, 1062148995089895377724791607498841
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=3:
..0..2..2..1..0..0....0..2..1..2..1..1....0..2..1..2..2..0....0..2..2..2..3..2
..0..1..2..0..2..1....0..1..1..0..2..2....0..0..2..0..2..1....0..0..0..0..1..1
..0..3..1..1..2..0....0..1..1..0..3..0....0..3..1..1..1..0....0..2..2..0..1..0
CROSSREFS
Column 6 of A221087.
Sequence in context: A088654 A079920 A203390 * A280845 A069986 A366361
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2013
STATUS
approved