A260283 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001011

1428, 6351, 42175, 192277, 984644, 5588466, 28517537, 145143631, 777843590, 4078878260, 21079729187, 110757498595, 581658241064, 3031796383253, 15858732127947, 83115560494098, 434515129250969, 2272037726943800

Offset

1,1

Comments

Column 7 of A260284

Links

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

R. H. Hardin, Empirical recurrence of order 75

Formula

Empirical recurrence of order 75 (see link above)

Example

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

Crossrefs

Cf. A260284

Sequence in context: A236897 A163589 A250582 * A156853 A292704 A321036

Adjacent sequences: A260280 A260281 A260282 * A260284 A260285 A260286

Keyword

nonn

Author

R. H. Hardin, Jul 22 2015

Status

approved