|
|
A302882
|
|
Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
|
|
1
|
|
|
64, 86, 536, 2938, 23037, 320405, 3780984, 44148194, 588417750, 8234641702, 109042468735, 1419909251038, 19277374758266, 264983349356693, 3552177386205259, 47276138831810619, 639816255891989376
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
Row 7 of A302877.
|
|
LINKS
|
R. H. Hardin, Table of n, a(n) for n = 1..210
|
|
EXAMPLE
|
Some solutions for n=5
..0..1..0..1..0. .0..1..0..0..1. .0..1..0..0..1. .0..1..1..1..1
..0..1..0..1..0. .0..1..1..1..1. .0..1..0..1..0. .1..1..1..0..1
..0..1..1..1..0. .1..1..1..0..1. .1..1..0..1..0. .1..1..1..0..1
..1..0..1..1..1. .1..1..1..0..1. .0..1..0..1..1. .0..1..1..0..0
..1..0..1..1..0. .0..1..1..0..1. .0..1..0..1..0. .1..1..1..0..1
..0..1..1..0..0. .1..1..1..0..1. .0..1..0..1..0. .0..1..0..1..0
..0..1..0..1..0. .0..1..1..1..1. .0..0..0..1..0. .0..1..1..1..0
|
|
CROSSREFS
|
Cf. A302877.
Sequence in context: A303202 A302315 A303045 * A303530 A119894 A138667
Adjacent sequences: A302879 A302880 A302881 * A302883 A302884 A302885
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
R. H. Hardin, Apr 15 2018
|
|
STATUS
|
approved
|
|
|
|