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A147086
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 10001-11111 pattern in any orientation.
0
1, 1, 1, 1, 1, 1, 5, 13, 33, 133, 443, 1649, 9331, 62887, 470664, 4206245, 41999179, 473581733, 6364226039, 101605745953, 1937023317718, 43487285044885, 1131769983108977
OFFSET
1,7
EXAMPLE
Maximal 8 X 8 example
.0.0.0.0.0.0.0.0
.0.0.0.1.0.0.0.1
.0.0.0.1.1.1.1.1
.0.1.1.0.0.0.0.0
.0.0.1.0.0.0.0.0
.0.0.1.0.0.0.0.0
.0.0.1.0.0.0.0.0
.0.1.1.0.0.0.0.0
CROSSREFS
Sequence in context: A283959 A055426 A146621 * A032406 A146917 A283329
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved