201313domain: NAppears in sequencesNumber of binary strings of length n with no substrings equal to 0001 0010 or 1010.at n=20A164449a(n) = 6*F(n)*F(n+1) + (-1)^n, where F = A000045.at n=12A264080Number of n X 2 0..1 arrays with each 1 adjacent to 1 or 2 king-move neighboring 1s.at n=10A295841