121032221898domain: NAppears in sequencesa(n) = -5*a(n-1) + 7*a(n-2) for n > 1 with a(0) = 1 and a(1) = -7.at n=14A152239a(n)=5*a(n-1)+7*a(n-2), n>1 ; a(0)=1, a(1)=7 .at n=14A152240