A260766 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010011

2478, 3196, 8056, 16095, 21594, 48788, 104308, 173103, 341748, 744619, 1358260, 2565577, 5470804, 10614658, 19796560, 40837698, 81880380, 154619606, 308916626, 626419385, 1206215390, 2364580587, 4777393178, 9359594548, 18228148840

Offset

1,1

Comments

Column 7 of A260767

Links

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

Example

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

Crossrefs

Cf. A260767

Sequence in context: A124594 A241048 A291199 * A003917 A235763 A235546

Adjacent sequences: A260763 A260764 A260765 * A260767 A260768 A260769

Keyword

nonn

Author

R. H. Hardin, Jul 30 2015

Status

approved