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A147410 Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 1001-1001-1111 pattern in any orientation. 0
1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 5, 1, 7, 5, 13, 13, 43, 25, 193, 49, 641, 175, 2061, 865 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,10
LINKS
EXAMPLE
Maximal 10 X 10 example
.0.0.0.1.0.0.1.0.0.0
.0.0.0.1.0.0.1.0.0.0
.0.0.0.1.1.1.1.0.0.0
.1.1.1.0.0.0.0.1.1.1
.0.0.1.0.0.0.0.1.0.0
.0.0.1.0.0.0.0.1.0.0
.1.1.1.0.0.0.0.1.1.1
.0.0.0.1.1.1.1.0.0.0
.0.0.0.1.0.0.1.0.0.0
.0.0.0.1.0.0.1.0.0.0
CROSSREFS
Sequence in context: A092319 A254938 A244149 * A146623 A197943 A318828
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)