123028domain: NAppears in sequencesNumber of n X 3 0..1 arrays avoiding the patterns 0 1 0 or 1 0 1 in any row, column, diagonal or antidiagonal.at n=10A206982G.f. A(x) satisfies A(x) = 1 + x*A(x)^4 / (1 + x*A(x)).at n=8A364758