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A146264 Number of n X n binary arrays with all ones connected only in a 110-111-110 pattern in any orientation. 0
1, 1, 5, 17, 45, 281, 4672, 78267, 1571678, 52679419, 3071977536, 240721783237, 27403978688452, 4744390760050525, 1239071516389632223 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
EXAMPLE
Maximal 8 X 8 example
.0.1.1.1.0.1.1.1
.0.1.1.1.0.1.1.1
.0.0.1.0.0.0.1.0
.1.1.0.0.0.0.0.0
.1.1.1.0.0.0.1.1
.1.1.0.1.0.1.1.1
.0.0.1.1.1.0.1.1
.0.0.1.1.1.0.0.0
CROSSREFS
Sequence in context: A147193 A271302 A147043 * A146216 A046787 A003295
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified June 25 05:27 EDT 2024. Contains 373697 sequences. (Running on oeis4.)