A260368 Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111

1378, 2047, 5806, 12858, 15440, 38370, 98032, 140897, 274244, 711411, 1222386, 2119236, 5089490, 9954145, 17052298, 37181977, 77288928, 137928650, 279219594, 589162026, 1099902766, 2142331748, 4472874520, 8654078147, 16619752932

Offset

1,1

Comments

Column 6 of A260370

Links

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

Example

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

Crossrefs

Cf. A260370

Sequence in context: A352731 A307422 A256627 * A323814 A204056 A204049

Adjacent sequences: A260365 A260366 A260367 * A260369 A260370 A260371

Keyword

nonn

Author

R. H. Hardin, Jul 23 2015

Status

approved