login
A260062
Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000111
0
48, 214, 1680, 7725, 25444, 251582, 1838884, 7478945, 76589120, 1223125268, 8125786040, 53795046102, 1356397478832, 26105639799058, 186181935816048, 2661981784951575
OFFSET
1,1
COMMENTS
Diagonal of A260070
EXAMPLE
Some solutions for n=4
..1..1..0..0..0..0....0..0..0..0..0..0....0..1..0..0..0..1....1..0..0..0..0..0
..0..0..0..0..1..1....1..0..0..0..1..0....0..0..0..0..1..0....1..0..0..1..1..0
..0..0..0..0..1..1....1..1..0..0..1..0....0..0..0..0..0..0....0..0..0..1..1..0
..1..1..0..0..0..0....0..0..0..0..0..0....0..1..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..0..0....0..0..0..0..0..0....0..1..0..0..1..0....1..0..0..0..0..0
..0..0..0..0..1..0....1..1..0..0..1..1....0..0..0..0..1..1....1..0..0..1..1..0
CROSSREFS
Sequence in context: A260286 A183683 A260240 * A364922 A235759 A062248
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 14 2015
STATUS
approved