A260069 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000111

5088, 13366, 42094, 89948, 185370, 660896, 1838884, 3846432, 10411860, 34278032, 85219868, 194549646, 586417692, 1722858971, 4107474218, 10494264900, 31635757784, 85184012548, 207122994200, 570030592938, 1645562710914

Offset

1,1

Comments

Column 7 of A260070

Links

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

Example

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

Crossrefs

Cf. A260070

Sequence in context: A271171 A116887 A034286 * A252143 A223400 A135842

Adjacent sequences: A260066 A260067 A260068 * A260070 A260071 A260072

Keyword

nonn

Author

R. H. Hardin, Jul 14 2015

Status

approved