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A147085 Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 10001-11111 pattern in any orientation. 0
1, 1, 1, 1, 5, 1, 9, 1, 17, 1, 197, 25, 1045, 149, 7998, 825, 200321, 9523, 3209727, 104723, 72875134, 1495123, 3146115855, 45808775, 136864094359, 1584020605 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,5
LINKS
EXAMPLE
Maximal 9 X 9 example
.0.0.1.0.0.0.1.0.0
.0.0.1.1.1.1.1.0.0
.1.1.0.0.0.0.0.1.1
.0.1.0.0.0.0.0.1.0
.0.1.0.0.0.0.0.1.0
.0.1.0.0.0.0.0.1.0
.1.1.0.0.0.0.0.1.1
.0.0.1.1.1.1.1.0.0
.0.0.1.0.0.0.1.0.0
CROSSREFS
Sequence in context: A336053 A266072 A147423 * A348980 A046580 A050358
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)