12379944domain: NAppears in sequencesExpansion of 3*x/(1 - 2*x^2 - 2*x + x^3).at n=17A120718a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 0, a(1) = 1, a(2) = 0, a(3) = 2.at n=36A295681a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 0, a(1) = 2, a(2) = 0, a(3) = 1.at n=36A295682