2789674domain: NAppears in sequencesNumber of binary strings of length n with no substrings equal to 0000 0101 or 1010.at n=22A164434Number of (n+2) X (1+2) 0..1 arrays with no 3 x 3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 and no column sum 0.at n=9A254971