A260175 Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00010001

2221, 6344, 17889, 55849, 189092, 651914, 2136068, 7213362, 24711312, 83529368, 282700608, 962444038, 3267244950, 11083453896, 37685135612, 128025816414, 434507040386, 1476562881230, 5017650387416, 17036610075740, 57869261660158

Offset

1,1

Comments

Column 6 of A260177

Links

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

Example

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

Crossrefs

Cf. A260177

Sequence in context: A241963 A092992 A210712 * A166580 A091189 A046443

Adjacent sequences: A260172 A260173 A260174 * A260176 A260177 A260178

Keyword

nonn

Author

R. H. Hardin, Jul 17 2015

Status

approved