A260293 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001

4762, 8550, 21028, 45596, 62980, 168582, 385280, 635774, 1454932, 3865506, 7077140, 13911248, 37767640, 80433874, 146256972, 363211496, 873338176, 1637204674, 3569621244, 9024085554, 18468136328, 36852868032, 90530978268

Offset

1,1

Comments

Column 7 of A260294

Links

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

Example

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

Crossrefs

Cf. A260294

Sequence in context: A183267 A258231 A257763 * A031567 A031747 A125949

Adjacent sequences: A260290 A260291 A260292 * A260294 A260295 A260296

Keyword

nonn

Author

R. H. Hardin, Jul 22 2015

Status

approved