2034505209domain: NAppears in sequencesa(n) = (2+(-5)^n)/3.at n=14A083085a(n) = ceiling(5^n/n).at n=14A129789a(n) = (2*5^n + 3*(-1)^(floor((n-1)/3)) + (-1)^n)/6.at n=14A276508