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A147414 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1001-1111-0110 pattern in any orientation. 0
1, 1, 1, 5, 1, 11, 9, 68, 153, 1684, 1679, 71570, 36923, 5414251, 2307043, 500915628, 344960766, 114097346426, 84657360537, 60278905221018, 32340840584502, 57465415940963552, 25612067643691049, 97100554928558169851 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
LINKS
EXAMPLE
Maximal 8 X 8 example
.0.0.1.0.0.1.0.0
.0.0.1.1.1.1.0.0
.1.1.0.1.1.0.1.1
.0.1.1.0.0.1.1.0
.0.1.1.0.0.1.1.0
.1.1.0.1.1.0.1.1
.0.0.1.1.1.1.0.0
.0.0.1.0.0.1.0.0
CROSSREFS
Sequence in context: A075677 A051853 A159074 * A117637 A332733 A132000
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified March 29 08:48 EDT 2024. Contains 371268 sequences. (Running on oeis4.)