1775105424domain: NAppears in sequencesNumber of 6 X n 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=13A208071Smallest square number > 10*a(n-1) with a(1) = 1.at n=9A242078