A260607 Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000101 00010001 or 00010101

1029, 2480, 7516, 22944, 70906, 228678, 727342, 2311370, 7375562, 23635422, 75483274, 240680882, 768878776, 2457889646, 7849301394, 25058672956, 80049377842, 255735233668, 816674565798, 2608176143032, 8331534566166

Offset

1,1

Comments

Column 6 of A260609

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..0..0..1..0..1..0..0..0....0..0..0..0..0..1..0..1....0..0..1..0..0..0..1..0
..0..0..0..1..0..1..0..0....1..0..0..0..1..0..1..0....0..0..0..0..0..1..0..0
..0..0..1..0..0..0..1..0....0..1..0..1..0..0..0..1....1..0..1..0..1..0..0..0
..0..1..0..0..0..1..0..1....0..0..1..0..1..0..0..0....0..1..0..1..0..1..0..0
..0..0..1..0..1..0..0..0....0..1..0..0..0..1..0..1....1..0..0..0..0..0..1..0
..0..1..0..1..0..1..0..0....1..0..1..0..0..0..1..0....0..0..0..1..0..0..0..1

Crossrefs

Cf. A260609

Sequence in context: A168189 A045031 A250759 * A298910 A256075 A351673

Adjacent sequences: A260604 A260605 A260606 * A260608 A260609 A260610

Keyword

nonn

Author

R. H. Hardin, Jul 29 2015

Status

approved