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A146398
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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1111-0010 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 17, 21, 669, 1435, 18879, 48783, 1539733, 4958749, 549583643, 2274430177, 407021932053, 2127553253975, 687811779125029, 4505491241008645, 2925616888695363409, 24054886221768029249
(list; graph; refs; listen; history; internal format)
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