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A147062 Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 01010-11111 pattern in any orientation. 0
1, 1, 1, 1, 1, 3, 10, 29, 96, 333, 1304, 7679, 55914, 466003, 4423899, 47937378, 606115023, 9533642435, 182376263152, 4158250315340, 111416233674712, 3515485102434381 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,6
LINKS
EXAMPLE
Maximal 8 X 8 example
.0.1.1.1.1.1.0.0
.1.0.1.0.1.0.0.0
.1.1.0.0.0.0.0.1
.1.0.0.0.0.0.1.1
.1.1.0.0.0.0.0.1
.1.0.0.0.0.0.1.1
.0.0.0.1.0.1.0.1
.0.0.1.1.1.1.1.0
CROSSREFS
Sequence in context: A147363 A147226 A301879 * A293155 A146384 A166174
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved

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Last modified June 16 19:52 EDT 2024. Contains 373432 sequences. (Running on oeis4.)