login
A221814
Number of nX3 arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns
1
0, 16, 14, 379, 1052, 11079, 47390, 361950, 1871008, 12486680, 70263638, 442461347, 2585100812, 15871512853, 94285153508, 572472852419, 3425837212298, 20699323338492, 124271759172208, 749252532667069, 4504672207533346
OFFSET
1,2
COMMENTS
Column 3 of A221817
LINKS
EXAMPLE
Some solutions for n=3
..1..1..1....0..1..1....0..1..1....0..2..1....0..2..1....0..1..1....1..1..1
..0..2..0....0..2..1....1..2..0....0..2..1....1..3..0....1..3..0....0..3..0
..1..3..0....1..3..0....1..3..0....1..2..0....1..1..0....1..2..0....1..2..0
CROSSREFS
Sequence in context: A184752 A291468 A072311 * A159454 A334350 A306305
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 26 2013
STATUS
approved