111418domain: NAppears in sequencesExpansion of (1+2*x-3*x^2-4*x^3+x^4)/(1-8*x^2+11*x^4).at n=13A033482Number of n X 1 0..7 arrays with values 0..7 introduced in row major order and each element equal to at least one horizontal or vertical neighbor.at n=17A198655Reduced Clausen numbers.at n=9A325147