2922508domain: NAppears in sequencesa(n) = 3*L(2*n)/5 - (-1)^n/5, where L = A000032.at n=16A099016a(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=33A295681a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 1, a(1) = 2, a(2) = 2, a(3) = 1.at n=32A295687