67042domain: NAppears in sequencesNumber of nX2 0..2 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order.at n=10A222643G.f. satisfies: A(x) = x + A( A(x)^2 - A(x)^6 ).at n=10A275756