A260206 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010001

2274, 6895, 45181, 245486, 1473681, 8929505, 52387329, 310875809, 1853180549, 10985801208, 65210933996, 387468307116, 2300272363175, 13657703384145, 81107425137672, 481596599130729, 2859640528315173, 16980696305470301

Offset

1,1

Comments

Column 7 of A260207

Links

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

R. H. Hardin, Empirical recurrence of order 80

Formula

Empirical recurrence of order 80 (see link above)

Example

Some solutions for n=3
..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..1..0..0
..0..0..0..0..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
..0..1..0..0..1..0..0..0..0....1..0..0..0..0..1..0..0..0
..1..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..1

Crossrefs

Cf. A260207

Sequence in context: A235522 A235650 A059466 * A349941 A349938 A195222

Adjacent sequences: A260203 A260204 A260205 * A260207 A260208 A260209

Keyword

nonn

Author

R. H. Hardin, Jul 19 2015

Status

approved