|
| |
|
|
A297400
|
|
Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 neighboring 1.
|
|
1
|
|
|
|
1, 178, 963, 3924, 74736, 640562, 4279111, 46261441, 428200086, 3465586864, 32328050104, 296748190460, 2574529121380, 23200388627087, 210159449303417, 1865437561436124, 16702908801335717, 150242351184841826
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
Row 7 of A297395.
|
|
|
LINKS
|
R. H. Hardin, Table of n, a(n) for n = 1..210
R. H. Hardin, Empirical recurrence of order 69
|
|
|
FORMULA
|
Empirical recurrence of order 69 (see link above)
|
|
|
EXAMPLE
|
Some solutions for n=5
..1..0..0..1..1. .1..0..0..1..1. .0..1..0..0..0. .1..1..0..1..0
..0..1..0..0..0. .0..1..0..0..0. .0..0..1..0..0. .0..0..0..0..1
..0..0..0..1..1. .0..1..0..1..1. .0..0..1..0..0. .0..1..1..0..0
..1..0..0..0..0. .1..0..0..0..0. .0..1..0..0..0. .0..0..0..0..1
..0..1..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..1..0..0. .0..1..1..0..0. .0..1..0..0..0
..0..0..0..1..1. .0..0..0..1..0. .0..0..0..0..0. .0..0..1..0..0
|
|
|
CROSSREFS
|
Cf. A297395.
Sequence in context: A217037 A224600 A279093 * A297600 A296824 A297588
Adjacent sequences: A297397 A297398 A297399 * A297401 A297402 A297403
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
R. H. Hardin, Dec 29 2017
|
|
|
STATUS
|
approved
|
| |
|
|
