5702544domain: NAppears in sequencesa(1) = 1; a(n) is the smallest square > 2*a(n-1).at n=20A175627Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 1 1 vertically.at n=9A207931Largest square number less than or equal to the n-th Fibonacci number.at n=34A263727