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A146256 Number of n X n binary arrays with all ones connected only in a 110-111-101 pattern in any orientation. 0
1, 1, 9, 33, 81, 609, 23953, 643873, 12050113, 545308145, 74642042017, 10960166126121, 1660619212003185, 467825703162664825 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
EXAMPLE
Maximal 8 X 8 example
.1.0.1.0.0.1.0.1
.1.1.1.0.0.1.1.1
.1.1.0.0.0.0.1.1
.0.0.1.0.1.0.0.0
.0.0.1.1.1.0.0.0
.1.1.0.1.1.0.1.1
.1.1.1.0.0.1.1.0
.1.0.1.0.0.1.1.1
CROSSREFS
Sequence in context: A147170 A146823 A147027 * A005920 A020324 A146171
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified May 19 07:05 EDT 2024. Contains 372666 sequences. (Running on oeis4.)