A259769 Number of (n+2) X (5+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 or 00000101.

376, 564, 612, 474, 400, 798, 524, 450, 588, 644, 540, 568, 1060, 716, 692, 1108, 1092, 902, 896, 1610, 1112, 1022, 1552, 1406, 1180, 1216, 2116, 1448, 1408, 2344, 2016, 1686, 1688, 2906, 1988, 1882, 3060, 2492, 2108, 2152, 3652, 2468, 2412, 4124, 3264

Offset

1,1

Comments

Column 5 of A259770.

Links

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

Formula

Empirical: a(n) = 2*a(n-7) -2*a(n-21) +a(n-28) for n>34.

Example

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

Crossrefs

Cf. A259770.

Sequence in context: A247263 A251652 A251645 * A238231 A008853 A188007

Adjacent sequences: A259766 A259767 A259768 * A259770 A259771 A259772

Keyword

nonn

Author

R. H. Hardin, Jul 04 2015

Status

approved