159596domain: NAppears in sequencesp-INVERT of the positive integers, where p(S) = 1 - 3*S + 2*S^2.at n=8A291182p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S - 2 S^2 + 2 S^3.at n=17A291250