|
|
A146280
|
|
Number of n X n binary arrays with all ones connected only in a 111-110-111 pattern in any orientation.
|
|
0
|
|
|
1, 1, 5, 17, 37, 109, 2661, 46501, 480069, 5729689, 346242155, 24356919567, 1272792100111, 72738009625423, 11858558725473199, 2972962662671644607, 716003950107687603735
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,3
|
|
LINKS
|
|
|
EXAMPLE
|
Maximal 8 X 8 example
.0.0.0.0.0.0.0.0
.1.1.1.0.0.1.1.1
.1.1.0.0.0.0.1.1
.1.1.1.0.0.1.1.1
.0.0.0.0.0.0.0.0
.0.1.0.1.0.1.0.1
.0.1.1.1.0.1.1.1
.0.1.1.1.0.1.1.1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,more
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|