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A147450 Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 11000-01100-00110-00011 pattern in any orientation. 0
1, 1, 1, 1, 1, 1, 1, 1, 1, 13, 27, 49, 163, 479, 1319, 4265, 14651, 50725, 219167, 1062605, 5322067, 29208507 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,10
LINKS
EXAMPLE
Maximal 10 X 10 example
.0.0.0.0.0.0.0.1.1.0
.1.0.0.0.0.0.1.1.0.0
.1.1.0.0.0.1.1.0.0.0
.0.1.1.0.1.1.0.0.0.0
.0.0.1.1.0.0.1.0.0.0
.0.0.0.1.0.0.1.1.0.0
.0.0.0.0.1.1.0.1.1.0
.0.0.0.1.1.0.0.0.1.1
.0.0.1.1.0.0.0.0.0.1
.0.1.1.0.0.0.0.0.0.0
CROSSREFS
Sequence in context: A189528 A132755 A250667 * A195045 A098266 A041332
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified August 17 11:18 EDT 2024. Contains 375209 sequences. (Running on oeis4.)