41045domain: NAppears in sequencesNumber of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1101-0111-0001 pattern in any orientation.at n=11A147232Length of row n of the array in A274183.at n=26A274184a(n) is the number of partitions of n with Durfee square of size <= 4.at n=41A330642